diff --git a/src/BusinessLogic/AdminAPI/Aspects/StoreContextAspect.php b/src/BusinessLogic/AdminAPI/Aspects/StoreContextAspect.php
index 61cc6cd..11b8e49 100644
--- a/src/BusinessLogic/AdminAPI/Aspects/StoreContextAspect.php
+++ b/src/BusinessLogic/AdminAPI/Aspects/StoreContextAspect.php
@@ -16,7 +16,7 @@ class StoreContextAspect implements Aspect
     /**
      * @var string
      */
-    private $storeId;
+    protected $storeId;
 
     public function __construct(string $storeId)
     {
diff --git a/src/BusinessLogic/AdminAPI/Connection/ConnectionController.php b/src/BusinessLogic/AdminAPI/Connection/ConnectionController.php
index ca2faa0..cbfad99 100644
--- a/src/BusinessLogic/AdminAPI/Connection/ConnectionController.php
+++ b/src/BusinessLogic/AdminAPI/Connection/ConnectionController.php
@@ -29,12 +29,12 @@ class ConnectionController
     /**
      * @var ConnectionService
      */
-    private $connectionService;
+    protected $connectionService;
 
     /**
      * @var StatisticalDataService
      */
-    private $statisticalDataService;
+    protected $statisticalDataService;
 
     /**
      * @param ConnectionService $connectionService
diff --git a/src/BusinessLogic/AdminAPI/Connection/Requests/ConnectionRequest.php b/src/BusinessLogic/AdminAPI/Connection/Requests/ConnectionRequest.php
index d76abcf..08cce32 100644
--- a/src/BusinessLogic/AdminAPI/Connection/Requests/ConnectionRequest.php
+++ b/src/BusinessLogic/AdminAPI/Connection/Requests/ConnectionRequest.php
@@ -17,22 +17,22 @@ class ConnectionRequest extends Request
     /**
      * @var string
      */
-    private $environment;
+    protected $environment;
 
     /**
      * @var string
      */
-    private $merchantId;
+    protected $merchantId;
 
     /**
      * @var string
      */
-    private $username;
+    protected $username;
 
     /**
      * @var string
      */
-    private $password;
+    protected $password;
 
     /**
      * @param string $environment
diff --git a/src/BusinessLogic/AdminAPI/Connection/Requests/OnboardingRequest.php b/src/BusinessLogic/AdminAPI/Connection/Requests/OnboardingRequest.php
index 9c9202a..7afa6a0 100644
--- a/src/BusinessLogic/AdminAPI/Connection/Requests/OnboardingRequest.php
+++ b/src/BusinessLogic/AdminAPI/Connection/Requests/OnboardingRequest.php
@@ -13,27 +13,27 @@ class OnboardingRequest extends Request
     /**
      * @var string
      */
-    private $environment;
+    protected $environment;
 
     /**
      * @var string
      */
-    private $username;
+    protected $username;
 
     /**
      * @var string
      */
-    private $password;
+    protected $password;
 
     /**
      * @var bool
      */
-    private $sendStatisticalData;
+    protected $sendStatisticalData;
 
     /**
      * @var string|null
      */
-    private $merchantId;
+    protected $merchantId;
 
     /**
      * @param string $environment
diff --git a/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionSettingsResponse.php b/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionSettingsResponse.php
index e3ac42b..82ac84b 100644
--- a/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionSettingsResponse.php
+++ b/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionSettingsResponse.php
@@ -15,7 +15,7 @@ class ConnectionSettingsResponse extends Response
     /**
      * @var ConnectionData
      */
-    private $connectionSettings;
+    protected $connectionSettings;
 
     /**
      * @param ConnectionData|null $connectionSettings
diff --git a/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionValidationResponse.php b/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionValidationResponse.php
index 232d326..c919116 100644
--- a/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionValidationResponse.php
+++ b/src/BusinessLogic/AdminAPI/Connection/Responses/ConnectionValidationResponse.php
@@ -14,12 +14,12 @@ class ConnectionValidationResponse extends Response
     /**
      * @var bool
      */
-    private $isValid;
+    protected $isValid;
 
     /**
      * @var string|null
      */
-    private $reason;
+    protected $reason;
 
 
     public function __construct(bool $isValid, ?string $reason = null)
diff --git a/src/BusinessLogic/AdminAPI/Connection/Responses/OnboardingDataResponse.php b/src/BusinessLogic/AdminAPI/Connection/Responses/OnboardingDataResponse.php
index daf9a0f..09aca52 100644
--- a/src/BusinessLogic/AdminAPI/Connection/Responses/OnboardingDataResponse.php
+++ b/src/BusinessLogic/AdminAPI/Connection/Responses/OnboardingDataResponse.php
@@ -16,12 +16,12 @@ class OnboardingDataResponse extends Response
     /**
      * @var ConnectionData
      */
-    private $connectionData;
+    protected $connectionData;
 
     /**
      * @var StatisticalData
      */
-    private $statisticalData;
+    protected $statisticalData;
 
     /**
      * @param ConnectionData|null $connectionData
diff --git a/src/BusinessLogic/AdminAPI/CountryConfiguration/CountryConfigurationController.php b/src/BusinessLogic/AdminAPI/CountryConfiguration/CountryConfigurationController.php
index 0f6aade..c778c75 100644
--- a/src/BusinessLogic/AdminAPI/CountryConfiguration/CountryConfigurationController.php
+++ b/src/BusinessLogic/AdminAPI/CountryConfiguration/CountryConfigurationController.php
@@ -22,12 +22,12 @@ class CountryConfigurationController
     /**
      * @var CountryConfigurationService
      */
-    private $countryConfigurationService;
+    protected $countryConfigurationService;
 
     /**
      * @var SellingCountriesService
      */
-    private $sellingCountriesService;
+    protected $sellingCountriesService;
 
     /**
      * @param CountryConfigurationService $countryConfigurationService
diff --git a/src/BusinessLogic/AdminAPI/CountryConfiguration/Requests/CountryConfigurationRequest.php b/src/BusinessLogic/AdminAPI/CountryConfiguration/Requests/CountryConfigurationRequest.php
index bb18bc9..b49e61b 100644
--- a/src/BusinessLogic/AdminAPI/CountryConfiguration/Requests/CountryConfigurationRequest.php
+++ b/src/BusinessLogic/AdminAPI/CountryConfiguration/Requests/CountryConfigurationRequest.php
@@ -17,7 +17,7 @@ class CountryConfigurationRequest extends Request
     /**
      * @var array
      */
-    private $countryConfigurations;
+    protected $countryConfigurations;
 
     /**
      * @param array $countryConfigurations
diff --git a/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/CountryConfigurationResponse.php b/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/CountryConfigurationResponse.php
index a235e42..7baa068 100644
--- a/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/CountryConfigurationResponse.php
+++ b/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/CountryConfigurationResponse.php
@@ -15,7 +15,7 @@ class CountryConfigurationResponse extends Response
     /**
      * @var CountryConfiguration[]
      */
-    private $countryConfigurations;
+    protected $countryConfigurations;
 
     /**
      * @param CountryConfiguration[]|null $countryConfigurations
diff --git a/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/SellingCountriesResponse.php b/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/SellingCountriesResponse.php
index 0fde58a..78ef9b5 100644
--- a/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/SellingCountriesResponse.php
+++ b/src/BusinessLogic/AdminAPI/CountryConfiguration/Responses/SellingCountriesResponse.php
@@ -15,7 +15,7 @@ class SellingCountriesResponse extends Response
     /**
      * @var SellingCountry[]
      */
-    private $sellingCountries;
+    protected $sellingCountries;
 
     /**
      * @param SellingCountry[] $sellingCountries
diff --git a/src/BusinessLogic/AdminAPI/Disconnect/DisconnectController.php b/src/BusinessLogic/AdminAPI/Disconnect/DisconnectController.php
index 95f6cda..e918de9 100644
--- a/src/BusinessLogic/AdminAPI/Disconnect/DisconnectController.php
+++ b/src/BusinessLogic/AdminAPI/Disconnect/DisconnectController.php
@@ -15,7 +15,7 @@ class DisconnectController
     /**
      * @var DisconnectService
      */
-    private $disconnectService;
+    protected $disconnectService;
 
     /**
      * @param DisconnectService $disconnectService
diff --git a/src/BusinessLogic/AdminAPI/GeneralSettings/GeneralSettingsController.php b/src/BusinessLogic/AdminAPI/GeneralSettings/GeneralSettingsController.php
index 25f8225..f13b3d2 100644
--- a/src/BusinessLogic/AdminAPI/GeneralSettings/GeneralSettingsController.php
+++ b/src/BusinessLogic/AdminAPI/GeneralSettings/GeneralSettingsController.php
@@ -20,12 +20,12 @@ class GeneralSettingsController
     /**
      * @var GeneralSettingsService
      */
-    private $generalSettingsService;
+    protected $generalSettingsService;
 
     /**
      * @var CategoryService
      */
-    private $categoryService;
+    protected $categoryService;
 
     /**
      * @param GeneralSettingsService $generalSettingsService
diff --git a/src/BusinessLogic/AdminAPI/GeneralSettings/Requests/GeneralSettingsRequest.php b/src/BusinessLogic/AdminAPI/GeneralSettings/Requests/GeneralSettingsRequest.php
index 01c4f06..a49740c 100644
--- a/src/BusinessLogic/AdminAPI/GeneralSettings/Requests/GeneralSettingsRequest.php
+++ b/src/BusinessLogic/AdminAPI/GeneralSettings/Requests/GeneralSettingsRequest.php
@@ -15,27 +15,27 @@ class GeneralSettingsRequest extends Request
     /**
      * @var bool
      */
-    private $sendOrderReportsPeriodicallyToSeQura;
+    protected $sendOrderReportsPeriodicallyToSeQura;
 
     /**
      * @var bool|null
      */
-    private $showSeQuraCheckoutAsHostedPage;
+    protected $showSeQuraCheckoutAsHostedPage;
 
     /**
      * @var string[]|null
      */
-    private $allowedIPAddresses;
+    protected $allowedIPAddresses;
 
     /**
      * @var string[]|null
      */
-    private $excludedCategories;
+    protected $excludedCategories;
 
     /**
      * @var string[]|null
      */
-    private $excludedProducts;
+    protected $excludedProducts;
 
     /**
      * @param bool $sendOrderReportsPeriodicallyToSeQura
diff --git a/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/GeneralSettingsResponse.php b/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/GeneralSettingsResponse.php
index 3f82baa..73b0282 100644
--- a/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/GeneralSettingsResponse.php
+++ b/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/GeneralSettingsResponse.php
@@ -15,7 +15,7 @@ class GeneralSettingsResponse extends Response
     /**
      * @var GeneralSettings
      */
-    private $generalSettings;
+    protected $generalSettings;
 
     /**
      * @param GeneralSettings|null $generalSettings
diff --git a/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/ShopCategoriesResponse.php b/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/ShopCategoriesResponse.php
index 2b76117..ab5d8c7 100644
--- a/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/ShopCategoriesResponse.php
+++ b/src/BusinessLogic/AdminAPI/GeneralSettings/Responses/ShopCategoriesResponse.php
@@ -15,7 +15,7 @@ class ShopCategoriesResponse extends Response
     /**
      * @var Category[]
      */
-    private $categories;
+    protected $categories;
 
     /**
      * @param Category[]|null $categories
diff --git a/src/BusinessLogic/AdminAPI/Integration/IntegrationController.php b/src/BusinessLogic/AdminAPI/Integration/IntegrationController.php
index d4de41e..e0689d0 100644
--- a/src/BusinessLogic/AdminAPI/Integration/IntegrationController.php
+++ b/src/BusinessLogic/AdminAPI/Integration/IntegrationController.php
@@ -21,17 +21,17 @@ class IntegrationController
     /**
      * @var VersionService
      */
-    private $versionService;
+    protected $versionService;
 
     /**
      * @var Configuration
      */
-    private $configurationService;
+    protected $configurationService;
 
     /**
      * @var UIStateService
      */
-    private $stateService;
+    protected $stateService;
 
     /**
      * @param VersionService $versionService
diff --git a/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationShopNameResponse.php b/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationShopNameResponse.php
index 10d8020..3c9a317 100644
--- a/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationShopNameResponse.php
+++ b/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationShopNameResponse.php
@@ -14,7 +14,7 @@ class IntegrationShopNameResponse extends Response
     /**
      * @var string
      */
-    private $shopName;
+    protected $shopName;
 
     /**
      * @param string $shopName
diff --git a/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationUIStateResponse.php b/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationUIStateResponse.php
index f5f9862..54615bf 100644
--- a/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationUIStateResponse.php
+++ b/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationUIStateResponse.php
@@ -14,24 +14,24 @@ class IntegrationUIStateResponse extends Response
     /**
      * Onboarding string constant.
      */
-    private const ONBOARDING = 'onboarding';
+    protected const ONBOARDING = 'onboarding';
 
     /**
      * Dashboard string constant.
      */
-    private const DASHBOARD = 'dashboard';
+    protected const DASHBOARD = 'dashboard';
 
     /**
      * String representation of state.
      *
      * @var string
      */
-    private $state;
+    protected $state;
 
     /**
      * @param string $state
      */
-    private function __construct(string $state)
+    protected function __construct(string $state)
     {
         $this->state = $state;
     }
diff --git a/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationVersionResponse.php b/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationVersionResponse.php
index 1d814c5..bae64a8 100644
--- a/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationVersionResponse.php
+++ b/src/BusinessLogic/AdminAPI/Integration/Responses/IntegrationVersionResponse.php
@@ -15,7 +15,7 @@ class IntegrationVersionResponse extends Response
     /**
      * @var Version
      */
-    private $version;
+    protected $version;
 
     /**
      * @param Version $version
diff --git a/src/BusinessLogic/AdminAPI/OrderStatusSettings/OrderStatusSettingsController.php b/src/BusinessLogic/AdminAPI/OrderStatusSettings/OrderStatusSettingsController.php
index fa4aacb..b64f383 100644
--- a/src/BusinessLogic/AdminAPI/OrderStatusSettings/OrderStatusSettingsController.php
+++ b/src/BusinessLogic/AdminAPI/OrderStatusSettings/OrderStatusSettingsController.php
@@ -22,12 +22,12 @@ class OrderStatusSettingsController
     /**
      * @var OrderStatusSettingsService
      */
-    private $orderStatusSettingsService;
+    protected $orderStatusSettingsService;
 
     /**
      * @var ShopOrderStatusesService
      */
-    private $shopOrderStatusesService;
+    protected $shopOrderStatusesService;
 
     /**
      * @param OrderStatusSettingsService $orderStatusSettingsService
diff --git a/src/BusinessLogic/AdminAPI/OrderStatusSettings/Requests/OrderStatusSettingsRequest.php b/src/BusinessLogic/AdminAPI/OrderStatusSettings/Requests/OrderStatusSettingsRequest.php
index 2bf0752..c59baff 100644
--- a/src/BusinessLogic/AdminAPI/OrderStatusSettings/Requests/OrderStatusSettingsRequest.php
+++ b/src/BusinessLogic/AdminAPI/OrderStatusSettings/Requests/OrderStatusSettingsRequest.php
@@ -17,7 +17,7 @@ class OrderStatusSettingsRequest extends Request
     /**
      * @var array
      */
-    private $orderStatusMappings;
+    protected $orderStatusMappings;
 
     /**
      * @param array $orderStatusMappings
diff --git a/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/OrderStatusSettingsResponse.php b/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/OrderStatusSettingsResponse.php
index 976ac61..bac9de1 100644
--- a/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/OrderStatusSettingsResponse.php
+++ b/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/OrderStatusSettingsResponse.php
@@ -15,7 +15,7 @@ class OrderStatusSettingsResponse extends Response
     /**
      * @var OrderStatusMapping[]
      */
-    private $orderStatusMappings;
+    protected $orderStatusMappings;
 
     /**
      * @param OrderStatusMapping[]|null $orderStatusMappings
diff --git a/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/ShopOrderStatusResponse.php b/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/ShopOrderStatusResponse.php
index ac00f4c..d93992b 100644
--- a/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/ShopOrderStatusResponse.php
+++ b/src/BusinessLogic/AdminAPI/OrderStatusSettings/Responses/ShopOrderStatusResponse.php
@@ -15,7 +15,7 @@ class ShopOrderStatusResponse extends Response
     /**
      * @var OrderStatus[]
      */
-    private $orderStatuses;
+    protected $orderStatuses;
 
     /**
      * @param OrderStatus[]|null $orderStatuses
diff --git a/src/BusinessLogic/AdminAPI/PaymentMethods/PaymentMethodsController.php b/src/BusinessLogic/AdminAPI/PaymentMethods/PaymentMethodsController.php
index e2da24d..c89e52b 100644
--- a/src/BusinessLogic/AdminAPI/PaymentMethods/PaymentMethodsController.php
+++ b/src/BusinessLogic/AdminAPI/PaymentMethods/PaymentMethodsController.php
@@ -17,7 +17,7 @@ class PaymentMethodsController
     /**
      * @var PaymentMethodsService
      */
-    private $paymentMethodsService;
+    protected $paymentMethodsService;
 
     /**
      * @param PaymentMethodsService $paymentMethodsService
diff --git a/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/PaymentMethodsResponse.php b/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/PaymentMethodsResponse.php
index 3b79cbb..0d07488 100644
--- a/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/PaymentMethodsResponse.php
+++ b/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/PaymentMethodsResponse.php
@@ -15,7 +15,7 @@ class PaymentMethodsResponse extends Response
     /**
      * @var SeQuraPaymentMethod[]
      */
-    private $paymentMethods;
+    protected $paymentMethods;
 
     /**
      * @param SeQuraPaymentMethod[] $paymentMethods
diff --git a/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/ProductsResponse.php b/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/ProductsResponse.php
index d3f4569..cfe06d7 100644
--- a/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/ProductsResponse.php
+++ b/src/BusinessLogic/AdminAPI/PaymentMethods/Responses/ProductsResponse.php
@@ -14,7 +14,7 @@ class ProductsResponse extends Response
     /**
      * @var string[]
      */
-    private $products;
+    protected $products;
 
     /**
      * @param string[] $products
diff --git a/src/BusinessLogic/AdminAPI/PromotionalWidgets/Responses/WidgetConfiguratorResponse.php b/src/BusinessLogic/AdminAPI/PromotionalWidgets/Responses/WidgetConfiguratorResponse.php
index 5636eb9..69e702c 100644
--- a/src/BusinessLogic/AdminAPI/PromotionalWidgets/Responses/WidgetConfiguratorResponse.php
+++ b/src/BusinessLogic/AdminAPI/PromotionalWidgets/Responses/WidgetConfiguratorResponse.php
@@ -11,7 +11,7 @@
  */
 class WidgetConfiguratorResponse extends Response
 {
-    private $widgetConfigurator;
+    protected $widgetConfigurator;
 
     /**
      * @inheritDoc
diff --git a/src/BusinessLogic/AdminAPI/Store/Responses/StoreResponse.php b/src/BusinessLogic/AdminAPI/Store/Responses/StoreResponse.php
index e436d2b..3c0f3d0 100644
--- a/src/BusinessLogic/AdminAPI/Store/Responses/StoreResponse.php
+++ b/src/BusinessLogic/AdminAPI/Store/Responses/StoreResponse.php
@@ -15,7 +15,7 @@ class StoreResponse extends Response
     /**
      * @var Store
      */
-    private $store;
+    protected $store;
 
     /**
      * @param Store $store
diff --git a/src/BusinessLogic/AdminAPI/Store/Responses/StoresResponse.php b/src/BusinessLogic/AdminAPI/Store/Responses/StoresResponse.php
index e88a18d..783b144 100644
--- a/src/BusinessLogic/AdminAPI/Store/Responses/StoresResponse.php
+++ b/src/BusinessLogic/AdminAPI/Store/Responses/StoresResponse.php
@@ -15,7 +15,7 @@ class StoresResponse extends Response
     /**
      * @var Store[]
      */
-    private $stores;
+    protected $stores;
 
     /**
      * @param Store[] $stores
diff --git a/src/BusinessLogic/AdminAPI/Store/StoreController.php b/src/BusinessLogic/AdminAPI/Store/StoreController.php
index 73648dd..2ec6418 100644
--- a/src/BusinessLogic/AdminAPI/Store/StoreController.php
+++ b/src/BusinessLogic/AdminAPI/Store/StoreController.php
@@ -18,7 +18,7 @@ class StoreController
     /**
      * @var StoreService
      */
-    private $storeService;
+    protected $storeService;
 
     /**
      * @param StoreService $storeService
@@ -59,7 +59,7 @@ public function getCurrentStore(): StoreResponse
      *
      * @return Store
      */
-    private function failBackStore(): Store
+    protected function failBackStore(): Store
     {
         return new Store('failBack', 'failBack');
     }
diff --git a/src/BusinessLogic/AdminAPI/TransactionLogs/Responses/TransactionLogsResponse.php b/src/BusinessLogic/AdminAPI/TransactionLogs/Responses/TransactionLogsResponse.php
index 912a51a..388634f 100644
--- a/src/BusinessLogic/AdminAPI/TransactionLogs/Responses/TransactionLogsResponse.php
+++ b/src/BusinessLogic/AdminAPI/TransactionLogs/Responses/TransactionLogsResponse.php
@@ -10,12 +10,12 @@ class TransactionLogsResponse extends Response
     /**
      * @var bool
      */
-    private $hasNextPage;
+    protected $hasNextPage;
 
     /**
      * @var TransactionLog[]
      */
-    private $transactionLogs;
+    protected $transactionLogs;
 
     /**
      * @param bool $hasNextPage
diff --git a/src/BusinessLogic/AdminAPI/TransactionLogs/TransactionLogsController.php b/src/BusinessLogic/AdminAPI/TransactionLogs/TransactionLogsController.php
index fc61c4b..4d5a86f 100644
--- a/src/BusinessLogic/AdminAPI/TransactionLogs/TransactionLogsController.php
+++ b/src/BusinessLogic/AdminAPI/TransactionLogs/TransactionLogsController.php
@@ -16,7 +16,7 @@ class TransactionLogsController
     /**
      * @var TransactionLogService
      */
-    private $transactionLogService;
+    protected $transactionLogService;
 
     /**
      * @param TransactionLogService $transactionLogService
diff --git a/src/BusinessLogic/Bootstrap/Aspect/Aspects.php b/src/BusinessLogic/Bootstrap/Aspect/Aspects.php
index ee33df3..e3f486a 100644
--- a/src/BusinessLogic/Bootstrap/Aspect/Aspects.php
+++ b/src/BusinessLogic/Bootstrap/Aspect/Aspects.php
@@ -16,15 +16,15 @@ class Aspects
     /**
      * @var T|null
      */
-    private $subject;
+    protected $subject;
     /**
      * @var class-string<T>|null
      */
-    private $subjectClassName;
+    protected $subjectClassName;
     /**
      * @var Aspect
      */
-    private $aspect;
+    protected $aspect;
 
     protected function __construct(Aspect $aspect)
     {
diff --git a/src/BusinessLogic/Bootstrap/Aspect/CompositeAspect.php b/src/BusinessLogic/Bootstrap/Aspect/CompositeAspect.php
index fe44748..0ef84b8 100644
--- a/src/BusinessLogic/Bootstrap/Aspect/CompositeAspect.php
+++ b/src/BusinessLogic/Bootstrap/Aspect/CompositeAspect.php
@@ -12,11 +12,11 @@ class CompositeAspect
     /**
      * @var Aspect
      */
-    private $aspect;
+    protected $aspect;
     /**
      * @var Aspect|null
      */
-    private $next;
+    protected $next;
 
     public function __construct(Aspect $aspect)
     {
@@ -41,7 +41,7 @@ public function applyOn(callable $callee, array $params = [])
         return $this->aspect->applyOn($callback, $params);
     }
 
-    private function getNextCallee(callable $callee, array $params = []): \Closure
+    protected function getNextCallee(callable $callee, array $params = []): \Closure
     {
         return function () use ($callee, $params) {
             return $this->next->applyOn($callee, $params);
diff --git a/src/BusinessLogic/CheckoutAPI/CheckoutAPI.php b/src/BusinessLogic/CheckoutAPI/CheckoutAPI.php
index e4ba9b2..04e922c 100644
--- a/src/BusinessLogic/CheckoutAPI/CheckoutAPI.php
+++ b/src/BusinessLogic/CheckoutAPI/CheckoutAPI.php
@@ -14,7 +14,7 @@
  */
 class CheckoutAPI
 {
-    private function __construct()
+    protected function __construct()
     {
     }
 
diff --git a/src/BusinessLogic/CheckoutAPI/Solicitation/Controller/SolicitationController.php b/src/BusinessLogic/CheckoutAPI/Solicitation/Controller/SolicitationController.php
index e87e3c2..1a4f02d 100644
--- a/src/BusinessLogic/CheckoutAPI/Solicitation/Controller/SolicitationController.php
+++ b/src/BusinessLogic/CheckoutAPI/Solicitation/Controller/SolicitationController.php
@@ -17,7 +17,7 @@ class SolicitationController
     /**
      * @var OrderService
      */
-    private $orderService;
+    protected $orderService;
 
     public function __construct(OrderService $orderService)
     {
diff --git a/src/BusinessLogic/CheckoutAPI/Solicitation/Response/IdentificationFormResponse.php b/src/BusinessLogic/CheckoutAPI/Solicitation/Response/IdentificationFormResponse.php
index a3998db..ac11e7d 100644
--- a/src/BusinessLogic/CheckoutAPI/Solicitation/Response/IdentificationFormResponse.php
+++ b/src/BusinessLogic/CheckoutAPI/Solicitation/Response/IdentificationFormResponse.php
@@ -15,7 +15,7 @@ class IdentificationFormResponse extends Response
     /**
      * @var SeQuraForm
      */
-    private $identificationForm;
+    protected $identificationForm;
 
     public function __construct(SeQuraForm $identificationForm)
     {
diff --git a/src/BusinessLogic/CheckoutAPI/Solicitation/Response/SolicitationResponse.php b/src/BusinessLogic/CheckoutAPI/Solicitation/Response/SolicitationResponse.php
index 8683ff7..b541507 100644
--- a/src/BusinessLogic/CheckoutAPI/Solicitation/Response/SolicitationResponse.php
+++ b/src/BusinessLogic/CheckoutAPI/Solicitation/Response/SolicitationResponse.php
@@ -16,11 +16,11 @@ class SolicitationResponse extends Response
     /**
      * @var SeQuraOrder
      */
-    private $order;
+    protected $order;
     /**
      * @var SeQuraPaymentMethod[]
      */
-    private $availablePaymentMethods;
+    protected $availablePaymentMethods;
 
     /**
      * SolicitationResponse constructor.
diff --git a/src/BusinessLogic/Domain/Connection/Models/AuthorizationCredentials.php b/src/BusinessLogic/Domain/Connection/Models/AuthorizationCredentials.php
index 6a5c6aa..69cf87c 100644
--- a/src/BusinessLogic/Domain/Connection/Models/AuthorizationCredentials.php
+++ b/src/BusinessLogic/Domain/Connection/Models/AuthorizationCredentials.php
@@ -14,12 +14,12 @@ class AuthorizationCredentials extends DataTransferObject
     /**
      * @var string Authorization username.
      */
-    private $username;
+    protected $username;
 
     /**
      * @var string Authorization username.
      */
-    private $password;
+    protected $password;
 
     /**
      * @param string $username
diff --git a/src/BusinessLogic/Domain/Connection/Models/ConnectionData.php b/src/BusinessLogic/Domain/Connection/Models/ConnectionData.php
index ab8cbf8..866cff1 100644
--- a/src/BusinessLogic/Domain/Connection/Models/ConnectionData.php
+++ b/src/BusinessLogic/Domain/Connection/Models/ConnectionData.php
@@ -16,17 +16,17 @@ class ConnectionData extends DataTransferObject
     /**
      * @var string
      */
-    private $environment;
+    protected $environment;
 
     /**
      * @var string|null
      */
-    private $merchantId;
+    protected $merchantId;
 
     /**
      * @var AuthorizationCredentials
      */
-    private $authorizationCredentials;
+    protected $authorizationCredentials;
 
     /**
      * @param string $environment
diff --git a/src/BusinessLogic/Domain/Connection/Models/OnboardingData.php b/src/BusinessLogic/Domain/Connection/Models/OnboardingData.php
index 75a1fc3..ae66526 100644
--- a/src/BusinessLogic/Domain/Connection/Models/OnboardingData.php
+++ b/src/BusinessLogic/Domain/Connection/Models/OnboardingData.php
@@ -12,12 +12,12 @@ class OnboardingData
     /**
      * @var ConnectionData
      */
-    private $connectionData;
+    protected $connectionData;
 
     /**
      * @var bool
      */
-    private $sendStatisticalData;
+    protected $sendStatisticalData;
 
     /**
      * @param ConnectionData $connectionData
diff --git a/src/BusinessLogic/Domain/Connection/Models/ValidateConnectionRequest.php b/src/BusinessLogic/Domain/Connection/Models/ValidateConnectionRequest.php
index ebb4d90..0347da8 100644
--- a/src/BusinessLogic/Domain/Connection/Models/ValidateConnectionRequest.php
+++ b/src/BusinessLogic/Domain/Connection/Models/ValidateConnectionRequest.php
@@ -15,7 +15,7 @@ class ValidateConnectionRequest extends DataTransferObject
     /**
      * @var ConnectionData
      */
-    private $connectionData;
+    protected $connectionData;
 
     /**
      * @param ConnectionData $connectionData
diff --git a/src/BusinessLogic/Domain/Connection/Services/ConnectionService.php b/src/BusinessLogic/Domain/Connection/Services/ConnectionService.php
index a50953b..670a203 100644
--- a/src/BusinessLogic/Domain/Connection/Services/ConnectionService.php
+++ b/src/BusinessLogic/Domain/Connection/Services/ConnectionService.php
@@ -24,7 +24,7 @@ class ConnectionService
     /**
      * @var ConnectionProxyInterface
      */
-    private $connectionProxy;
+    protected $connectionProxy;
 
     /**
      * @param ConnectionProxyInterface $connectionProxy
@@ -85,7 +85,7 @@ public function saveConnectionData(ConnectionData $connectionData): void
      *
      * @return ConnectionDataRepositoryInterface
      */
-    private function getConnectionDataRepository(): ConnectionDataRepositoryInterface
+    protected function getConnectionDataRepository(): ConnectionDataRepositoryInterface
     {
         return ServiceRegister::getService(ConnectionDataRepositoryInterface::class);
     }
diff --git a/src/BusinessLogic/Domain/CountryConfiguration/Models/CountryConfiguration.php b/src/BusinessLogic/Domain/CountryConfiguration/Models/CountryConfiguration.php
index 8c19af1..d525c2e 100644
--- a/src/BusinessLogic/Domain/CountryConfiguration/Models/CountryConfiguration.php
+++ b/src/BusinessLogic/Domain/CountryConfiguration/Models/CountryConfiguration.php
@@ -17,12 +17,12 @@ class CountryConfiguration
     /**
      * @var string
      */
-    private $countryCode;
+    protected $countryCode;
 
     /**
      * @var string
      */
-    private $merchantId;
+    protected $merchantId;
 
     /**
      * @param string $countryCode
diff --git a/src/BusinessLogic/Domain/CountryConfiguration/Models/SellingCountry.php b/src/BusinessLogic/Domain/CountryConfiguration/Models/SellingCountry.php
index 41c2c80..dda23a5 100644
--- a/src/BusinessLogic/Domain/CountryConfiguration/Models/SellingCountry.php
+++ b/src/BusinessLogic/Domain/CountryConfiguration/Models/SellingCountry.php
@@ -12,12 +12,12 @@ class SellingCountry
     /**
      * @var string
      */
-    private $code;
+    protected $code;
 
     /**
      * @var string
      */
-    private $name;
+    protected $name;
 
     /**
      * @param string $code
diff --git a/src/BusinessLogic/Domain/CountryConfiguration/Services/CountryConfigurationService.php b/src/BusinessLogic/Domain/CountryConfiguration/Services/CountryConfigurationService.php
index d00c04c..d657f9f 100644
--- a/src/BusinessLogic/Domain/CountryConfiguration/Services/CountryConfigurationService.php
+++ b/src/BusinessLogic/Domain/CountryConfiguration/Services/CountryConfigurationService.php
@@ -16,11 +16,11 @@ class CountryConfigurationService
     /**
      * @var CountryConfigurationRepositoryInterface
      */
-    private $countryConfigurationRepository;
+    protected $countryConfigurationRepository;
     /**
      * @var SellingCountriesServiceInterface
      */
-    private $sellingCountriesService;
+    protected $sellingCountriesService;
 
     /**
      * @param CountryConfigurationRepositoryInterface $countryConfigurationRepository
diff --git a/src/BusinessLogic/Domain/CountryConfiguration/Services/SellingCountriesService.php b/src/BusinessLogic/Domain/CountryConfiguration/Services/SellingCountriesService.php
index 7091d16..5ef8e58 100644
--- a/src/BusinessLogic/Domain/CountryConfiguration/Services/SellingCountriesService.php
+++ b/src/BusinessLogic/Domain/CountryConfiguration/Services/SellingCountriesService.php
@@ -19,7 +19,7 @@ class SellingCountriesService
     /**
      * @var SellingCountriesServiceInterface
      */
-    private $integrationSellingCountriesService;
+    protected $integrationSellingCountriesService;
 
     public function __construct(SellingCountriesServiceInterface $integrationSellingCountriesService)
     {
diff --git a/src/BusinessLogic/Domain/Disconnect/Services/DisconnectService.php b/src/BusinessLogic/Domain/Disconnect/Services/DisconnectService.php
index c8d58ab..8ff9518 100644
--- a/src/BusinessLogic/Domain/Disconnect/Services/DisconnectService.php
+++ b/src/BusinessLogic/Domain/Disconnect/Services/DisconnectService.php
@@ -16,12 +16,12 @@ class DisconnectService
     /**
      * @var DisconnectServiceInterface
      */
-    private $integrationDisconnectService;
+    protected $integrationDisconnectService;
 
     /**
      * @var SendReportRepositoryInterface
      */
-    private $sendReportRepository;
+    protected $sendReportRepository;
 
     /**
      * @param DisconnectServiceInterface $integrationDisconnectService
diff --git a/src/BusinessLogic/Domain/GeneralSettings/Models/Category.php b/src/BusinessLogic/Domain/GeneralSettings/Models/Category.php
index 96d8172..d861026 100644
--- a/src/BusinessLogic/Domain/GeneralSettings/Models/Category.php
+++ b/src/BusinessLogic/Domain/GeneralSettings/Models/Category.php
@@ -15,12 +15,12 @@ class Category
     /**
      * @var string
      */
-    private $id;
+    protected $id;
 
     /**
      * @var string
      */
-    private $name;
+    protected $name;
 
     /**
      * @param string $id
diff --git a/src/BusinessLogic/Domain/GeneralSettings/Models/GeneralSettings.php b/src/BusinessLogic/Domain/GeneralSettings/Models/GeneralSettings.php
index 912a2db..0bbd8f4 100644
--- a/src/BusinessLogic/Domain/GeneralSettings/Models/GeneralSettings.php
+++ b/src/BusinessLogic/Domain/GeneralSettings/Models/GeneralSettings.php
@@ -12,27 +12,27 @@ class GeneralSettings
     /**
      * @var bool
      */
-    private $sendOrderReportsPeriodicallyToSeQura;
+    protected $sendOrderReportsPeriodicallyToSeQura;
 
     /**
      * @var bool|null
      */
-    private $showSeQuraCheckoutAsHostedPage;
+    protected $showSeQuraCheckoutAsHostedPage;
 
     /**
      * @var string[]|null
      */
-    private $allowedIPAddresses;
+    protected $allowedIPAddresses;
 
     /**
      * @var string[]|null
      */
-    private $excludedCategories;
+    protected $excludedCategories;
 
     /**
      * @var string[]|null
      */
-    private $excludedProducts;
+    protected $excludedProducts;
 
     /**
      * @param bool $sendOrderReportsPeriodicallyToSeQura
diff --git a/src/BusinessLogic/Domain/GeneralSettings/Services/CategoryService.php b/src/BusinessLogic/Domain/GeneralSettings/Services/CategoryService.php
index d6c3fe9..3d5414f 100644
--- a/src/BusinessLogic/Domain/GeneralSettings/Services/CategoryService.php
+++ b/src/BusinessLogic/Domain/GeneralSettings/Services/CategoryService.php
@@ -18,7 +18,7 @@ class CategoryService
     /**
      * @var CategoryServiceInterface
      */
-    private $integrationCategoryService;
+    protected $integrationCategoryService;
 
     /**
      * @param CategoryServiceInterface $integrationCategoryService
diff --git a/src/BusinessLogic/Domain/GeneralSettings/Services/GeneralSettingsService.php b/src/BusinessLogic/Domain/GeneralSettings/Services/GeneralSettingsService.php
index 4c15aa9..4b754c9 100644
--- a/src/BusinessLogic/Domain/GeneralSettings/Services/GeneralSettingsService.php
+++ b/src/BusinessLogic/Domain/GeneralSettings/Services/GeneralSettingsService.php
@@ -15,7 +15,7 @@ class GeneralSettingsService
     /**
      * @var GeneralSettingsRepositoryInterface
      */
-    private $generalSettingsRepository;
+    protected $generalSettingsRepository;
 
     /**
      * @param GeneralSettingsRepositoryInterface $generalSettingsRepository
diff --git a/src/BusinessLogic/Domain/Merchant/Models/GetAvailablePaymentMethodsRequest.php b/src/BusinessLogic/Domain/Merchant/Models/GetAvailablePaymentMethodsRequest.php
index 698a03b..e5c9831 100644
--- a/src/BusinessLogic/Domain/Merchant/Models/GetAvailablePaymentMethodsRequest.php
+++ b/src/BusinessLogic/Domain/Merchant/Models/GetAvailablePaymentMethodsRequest.php
@@ -14,7 +14,7 @@ class GetAvailablePaymentMethodsRequest extends DataTransferObject
     /**
      * @var string
      */
-    private $merchantId;
+    protected $merchantId;
 
     /**
      * @param string $merchantId
diff --git a/src/BusinessLogic/Domain/Multistore/StoreContext.php b/src/BusinessLogic/Domain/Multistore/StoreContext.php
index 4a73a9c..8de2ad8 100644
--- a/src/BusinessLogic/Domain/Multistore/StoreContext.php
+++ b/src/BusinessLogic/Domain/Multistore/StoreContext.php
@@ -14,14 +14,14 @@ class StoreContext
     /**
      * @var self
      */
-    private static $instance;
+    protected static $instance;
 
     /**
      * @var string
      */
-    private $storeId = '';
+    protected $storeId = '';
 
-    private function __construct()
+    protected function __construct()
     {
     }
 
diff --git a/src/BusinessLogic/Domain/Order/Models/GetAvailablePaymentMethodsRequest.php b/src/BusinessLogic/Domain/Order/Models/GetAvailablePaymentMethodsRequest.php
index 1f7492e..11dab9c 100644
--- a/src/BusinessLogic/Domain/Order/Models/GetAvailablePaymentMethodsRequest.php
+++ b/src/BusinessLogic/Domain/Order/Models/GetAvailablePaymentMethodsRequest.php
@@ -14,7 +14,7 @@ class GetAvailablePaymentMethodsRequest extends DataTransferObject
     /**
      * @var string
      */
-    private $orderId;
+    protected $orderId;
 
     /**
      * @param string $orderId
diff --git a/src/BusinessLogic/Domain/Order/Models/GetFormRequest.php b/src/BusinessLogic/Domain/Order/Models/GetFormRequest.php
index 0e7aaff..f0a9528 100644
--- a/src/BusinessLogic/Domain/Order/Models/GetFormRequest.php
+++ b/src/BusinessLogic/Domain/Order/Models/GetFormRequest.php
@@ -14,22 +14,22 @@ class GetFormRequest extends DataTransferObject
     /**
      * @var string
      */
-    private $orderId;
+    protected $orderId;
 
     /**
      * @var string|null
      */
-    private $product;
+    protected $product;
 
     /**
      * @var string|null
      */
-    private $campaign;
+    protected $campaign;
 
     /**
      * @var bool|null
      */
-    private $ajax;
+    protected $ajax;
 
     /**
      * @param string $orderId
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Address.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Address.php
index 7b9e746..64e8375 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Address.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Address.php
@@ -12,67 +12,67 @@ class Address extends OrderRequestDTO
     /**
      * @var string|null Customer's given names for delivery/invoice.
      */
-    private $givenNames;
+    protected $givenNames;
 
     /**
      * @var string|null Customer's last names for delivery/invoice.
      */
-    private $surnames;
+    protected $surnames;
 
     /**
      * @var string Customer company name.
      */
-    private $company;
+    protected $company;
 
     /**
      * @var string Delivery/invoice address line 1.
      */
-    private $addressLine1;
+    protected $addressLine1;
 
     /**
      * @var string Delivery/invoice address line 2.
      */
-    private $addressLine2;
+    protected $addressLine2;
 
     /**
      * @var string Delivery/invoice address postal code.
      */
-    private $postalCode;
+    protected $postalCode;
 
     /**
      * @var string Delivery/invoice address city.
      */
-    private $city;
+    protected $city;
 
     /**
      * @var string Delivery/invoice address country code.
      */
-    private $countryCode;
+    protected $countryCode;
 
     /**
      * @var string|null Customer phone.
      */
-    private $phone;
+    protected $phone;
 
     /**
      * @var string|null Customer mobile phone.
      */
-    private $mobilePhone;
+    protected $mobilePhone;
 
     /**
      * @var string|null Customer region or state.
      */
-    private $state;
+    protected $state;
 
     /**
      * @var string|null Extra handling information that the customer adds to the order.
      */
-    private $extra;
+    protected $extra;
 
     /**
      * @var string|null Customer VAT number.
      */
-    private $vatNumber;
+    protected $vatNumber;
 
     /**
      * @param string $company
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Cart.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Cart.php
index c8105d1..c088cb5 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Cart.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Cart.php
@@ -27,37 +27,37 @@ class Cart extends OrderRequestDTO
     /**
      * @var string Name of currency used on the purchase.
      */
-    private $currency;
+    protected $currency;
 
     /**
      * @var boolean Set to true if shopper has indicated that this is a gift.
      */
-    private $gift;
+    protected $gift;
 
     /**
      * @var int Total value with tax of the items listed below.
      */
-    private $orderTotalWithTax;
+    protected $orderTotalWithTax;
 
     /**
      * @var string|int|null Shop's unique id for this basket.
      */
-    private $cartRef;
+    protected $cartRef;
 
     /**
      * @var string|null When shopper put the first item in the cart.
      */
-    private $createdAt;
+    protected $createdAt;
 
     /**
      * @var string|null When shopper put the last item in the cart.
      */
-    private $updatedAt;
+    protected $updatedAt;
 
     /**
      * @var Item[] List of items in the order.
      */
-    private $items;
+    protected $items;
 
     /**
      * @param string $currency
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/CreateOrderRequest.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/CreateOrderRequest.php
index 3acd3f2..37a8df6 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/CreateOrderRequest.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/CreateOrderRequest.php
@@ -23,12 +23,12 @@ class CreateOrderRequest extends BaseOrderRequest
     /**
      * @var string String containing state of the order.
      */
-    private $state;
+    protected $state;
 
     /**
      * @var Cart Fields describing the shopping cart.
      */
-    private $cart;
+    protected $cart;
 
     /**
      * @var Gui Fields describing the medium for which the response will be generated.
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Customer.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Customer.php
index 132f19b..a3a38f5 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Customer.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Customer.php
@@ -12,98 +12,98 @@ class Customer extends OrderRequestDTO
     /**
      * @var string|null Customer given names.
      */
-    private $givenNames;
+    protected $givenNames;
 
     /**
      * @var string|null Customer surnames.
      */
-    private $surnames;
+    protected $surnames;
 
     /**
      * @var string|null Customer title and/or gender.
      */
-    private $title;
+    protected $title;
 
     /**
      * @var string Customer email.
      */
-    private $email;
+    protected $email;
 
     /**
      * @var boolean|string Is the customer logged in.
      */
-    private $loggedIn;
+    protected $loggedIn;
 
     /**
      * @var string Customer language code.
      */
-    private $languageCode;
+    protected $languageCode;
 
     /**
      * @var string Customer ip number.
      */
-    private $ipNumber;
+    protected $ipNumber;
 
     /**
      * @var string Customer browser.
      */
-    private $userAgent;
+    protected $userAgent;
 
     /**
      * @var string|int|null Customer reference number in the shop's database.
      */
-    private $ref;
+    protected $ref;
 
     /**
      * @var string|null Customer date of birth in ISO-8601 format.
      */
-    private $dateOfBirth;
+    protected $dateOfBirth;
 
     /**
      * @var string|null Customer's national identity number.
      */
-    private $nin;
+    protected $nin;
 
     /**
      * @var string|null Customer company name.
      */
-    private $company;
+    protected $company;
 
     /**
      * @var string|null Shopper VAT number.
      */
-    private $vatNumber;
+    protected $vatNumber;
 
     /**
      * @var string|null Date when this customer was added to the shop database, in ISO-8601 format.
      */
-    private $createdAt;
+    protected $createdAt;
 
     /**
      * @var string|null Date when this customer was updated in the shop database, in ISO-8601 format.
      */
-    private $updatedAt;
+    protected $updatedAt;
 
     /**
      * @var int|null The merchant's rating of this customer. 0 to 100, inclusive, where 0 is "cannot be trusted" and
      * 100 is "very trustworthy".
      */
-    private $rating;
+    protected $rating;
 
     /**
      * @var string|null A validation code printed in the physical DNI or NIE.
      */
-    private $ninControl;
+    protected $ninControl;
 
     /**
      * @var PreviousOrder[]|null List of customer's previous orders in this shop.
      */
-    private $previousOrders;
+    protected $previousOrders;
 
     /**
      * @var Vehicle|null Fields describing the customer's vehicle.
      */
-    private $vehicle;
+    protected $vehicle;
 
     /**
      * @param string $email
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/DeliveryMethod.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/DeliveryMethod.php
index 0556e68..06a5899 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/DeliveryMethod.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/DeliveryMethod.php
@@ -12,22 +12,22 @@ class DeliveryMethod extends OrderRequestDTO
     /**
      * @var string Name of the delivery method.
      */
-    private $name;
+    protected $name;
 
     /**
      * @var string|null Days it takes to deliver the goods.
      */
-    private $days;
+    protected $days;
 
     /**
      * @var string|null Company or agent that performs the delivery.
      */
-    private $provider;
+    protected $provider;
 
     /**
      * @var boolean|null If goods are delivered to the buyer's home or office and not to a pick-up place.
      */
-    private $homeDelivery;
+    protected $homeDelivery;
 
     /**
      * @param string $name
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/EventsWebhook.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/EventsWebhook.php
index 541a8cf..9cb9a89 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/EventsWebhook.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/EventsWebhook.php
@@ -15,12 +15,12 @@ class EventsWebhook extends OrderRequestDTO
     /**
      * @var string SeQura will make a POST to this URL when an event happens for that order after confirmation.
      */
-    private $url;
+    protected $url;
 
     /**
      * @var string[]|null Optional name/value pairs that will be included in the webhook event POST.
      */
-    private $parameters;
+    protected $parameters;
 
     /**
      * @param string $url
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Gui.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Gui.php
index 9ec3538..09d075f 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Gui.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Gui.php
@@ -19,7 +19,7 @@ class Gui extends OrderRequestDTO
     /**
      * @var string Type of layout the API should optimise for.
      */
-    private $layout;
+    protected $layout;
 
     /**
      * @param string $layout
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/DiscountItem.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/DiscountItem.php
index 3cff4f0..4951a42 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/DiscountItem.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/DiscountItem.php
@@ -12,12 +12,12 @@ class DiscountItem extends Item
     /**
      * @var string|int A unique code that refers to this discount.
      */
-    private $reference;
+    protected $reference;
 
     /**
      * @var string A name to describe this discount.
      */
-    private $name;
+    protected $name;
 
     /**
      * @param int|string $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/HandlingItem.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/HandlingItem.php
index f0b8db6..78dc87d 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/HandlingItem.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/HandlingItem.php
@@ -12,12 +12,12 @@ class HandlingItem extends Item
     /**
      * @var string|int A unique code that refers to this item.
      */
-    private $reference;
+    protected $reference;
 
     /**
      * @var string A name to describe this item.
      */
-    private $name;
+    protected $name;
 
     /**
      * @param int|string $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/OtherPaymentItem.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/OtherPaymentItem.php
index f2866e5..ba65cff 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/OtherPaymentItem.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/OtherPaymentItem.php
@@ -12,12 +12,12 @@ class OtherPaymentItem extends Item
     /**
      * @var string|int A code that refers to this "other" payment.
      */
-    private $reference;
+    protected $reference;
 
     /**
      * @var string A name to describe this payment.
      */
-    private $name;
+    protected $name;
 
     /**
      * @param int|string $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ProductItem.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ProductItem.php
index 91fb304..7c7ceb8 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ProductItem.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ProductItem.php
@@ -12,78 +12,78 @@ class ProductItem extends Item
     /**
      * @var string|int A public product id for this item.
      */
-    private $reference;
+    protected $reference;
 
     /**
      * @var string A description to include in the payment instructions.
      */
-    private $name;
+    protected $name;
 
     /**
      * @var int Price with tax for one item.
      */
-    private $priceWithTax;
+    protected $priceWithTax;
 
     /**
      * @var int The number of items ordered by the shopper.
      */
-    private $quantity;
+    protected $quantity;
 
     /**
      * @var boolean Can the buyer access or consume the product without a physical delivery.
      */
-    private $downloadable;
+    protected $downloadable;
 
     /**
      * @var boolean|null A product is perishable if it loses its value if it is not delivered on time.
      */
-    private $perishable;
+    protected $perishable;
 
     /**
      * @var boolean|null A product is personalized if it is irreversibly customized in a way that makes it less
      * appealing to most people other than the buyer.
      */
-    private $personalized;
+    protected $personalized;
 
     /**
      * @var boolean|null A product is restockable if it can be sold to someone else if returned in good condition.
      */
-    private $restockable;
+    protected $restockable;
 
     /**
      * @var string|null Name of category.
      */
-    private $category;
+    protected $category;
 
     /**
      * @var string|null Product description.
      */
-    private $description;
+    protected $description;
 
     /**
      * @var string|null Name of manufacturer.
      */
-    private $manufacturer;
+    protected $manufacturer;
 
     /**
      * @var string|null Name of supplier or provider.
      */
-    private $supplier;
+    protected $supplier;
 
     /**
      * @var string|int|null Id from database.
      */
-    private $productId;
+    protected $productId;
 
     /**
      * @var string|null Product page URL in your shop.
      */
-    private $url;
+    protected $url;
 
     /**
      * @var string|null A reference to the tracking in which this item will be handed.
      */
-    private $trackingReference;
+    protected $trackingReference;
 
     /**
      * @param int|string $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ServiceItem.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ServiceItem.php
index e076c39..f950abf 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ServiceItem.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Item/ServiceItem.php
@@ -18,47 +18,47 @@ class ServiceItem extends Item
     /**
      * @var string|int A public id for this service.
      */
-    private $reference;
+    protected $reference;
 
     /**
      * @var string A name to describe this service.
      */
-    private $name;
+    protected $name;
 
     /**
      * @var string|null Maximum date for the service to be rendered or ended (ISO8601 formatted date).
      */
-    private $endsOn;
+    protected $endsOn;
 
     /**
      * @var string|null Maximum time, from the start of the service, for the service to be rendered or ended.
      */
-    private $endsIn;
+    protected $endsIn;
 
     /**
      * @var int Price with tax for one item.
      */
-    private $priceWithTax;
+    protected $priceWithTax;
 
     /**
      * @var int The number of items ordered by the shopper.
      */
-    private $quantity;
+    protected $quantity;
 
     /**
      * @var boolean True for services that can be fully (or sufficiently) enjoyed without a physical delivery.
      */
-    private $downloadable;
+    protected $downloadable;
 
     /**
      * @var string|null Name of supplier or provider.
      */
-    private $supplier;
+    protected $supplier;
 
     /**
      * @var boolean|null True when the service has been rendered.
      */
-    private $rendered;
+    protected $rendered;
 
     /**
      * @param $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Merchant.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Merchant.php
index c3b64cc..6e065a6 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Merchant.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Merchant.php
@@ -15,65 +15,65 @@ class Merchant extends OrderRequestDTO
     /**
      * @var string|int Merchant identifier.
      */
-    private $id;
+    protected $id;
 
     /**
      * @var string|null SeQura will make an IPN POST to this URL when the order is approved.
      */
-    private $notifyUrl;
+    protected $notifyUrl;
 
     /**
      * @var string[]|null Optional name/value pairs that will be included in the IPN POST.
      */
-    private $notificationParameters;
+    protected $notificationParameters;
 
     /**
      * @var string|null The shopper will be redirected to this URL once the shop has confirmed the order after IPN
      * notification.
      */
-    private $returnUrl;
+    protected $returnUrl;
 
     /**
      * @var string|null Name of Javascript function to call when SeQura approves the order and checkout should move to
      * next step.
      */
-    private $approvedCallback;
+    protected $approvedCallback;
 
     /**
      * @var string|null URL for a page where the shopper can edit their name, address, etc.
      */
-    private $editUrl;
+    protected $editUrl;
 
     /**
      * @var string|null URL for a page where the shopper can pick another payment method.
      */
-    private $abortUrl;
+    protected $abortUrl;
 
     /**
      * @var string|null Name of Javascript function to call if the shopper is rejected.
      */
-    private $rejectedCallback;
+    protected $rejectedCallback;
 
     /**
      * @var string|null Name of Javascript function to call to get the shopper's part-payment details.
      */
-    private $partpaymentDetailsGetter;
+    protected $partpaymentDetailsGetter;
 
     /**
      * @var string|null When SeQura approves the order, the customer's browser will make a POST to this URL without
      * arguments.
      */
-    private $approvedUrl;
+    protected $approvedUrl;
 
     /**
      * @var Options|null Features activated by this merchant in this request.
      */
-    private $options;
+    protected $options;
 
     /**
      * @var EventsWebhook|null Fields describing how the merchant wants to receive webhook events.
      */
-    private $eventsWebhook;
+    protected $eventsWebhook;
 
     /**
      * @param int|string $id
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/MerchantReference.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/MerchantReference.php
index 8c774c0..09e474b 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/MerchantReference.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/MerchantReference.php
@@ -12,12 +12,12 @@ class MerchantReference extends OrderRequestDTO
     /**
      * @var string|int Merchant reference 1.
      */
-    private $orderRef1;
+    protected $orderRef1;
 
     /**
      * @var string|int|null Merchant reference 2.
      */
-    private $orderRef2;
+    protected $orderRef2;
 
     /**
      * @param int|string $orderRef1
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Options.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Options.php
index 927275a..32cadaa 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Options.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Options.php
@@ -12,23 +12,23 @@ class Options extends OrderRequestDTO
     /**
      * @var boolean|null Set to true if $ is jQuery 1.7 or above, false otherwise.
      */
-    private $hasJquery;
+    protected $hasJquery;
 
     /**
      * @var boolean|null True if the merchant wishes to use the API option that explicitly communicates if some items
      * will be shipped immediately after confirmation.
      */
-    private $usesShippedCart;
+    protected $usesShippedCart;
 
     /**
      * @var boolean|null True if the merchant cannot send both addresses during checkout.
      */
-    private $addressesMayBeMissing;
+    protected $addressesMayBeMissing;
 
     /**
      * @var boolean|null True if the merchant wishes to lock the provided shopper's personal data.
      */
-    private $immutableCustomerData;
+    protected $immutableCustomerData;
 
     /**
      * @param bool|null $hasJquery
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/OrderRequestDTO.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/OrderRequestDTO.php
index 933883f..45f4a94 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/OrderRequestDTO.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/OrderRequestDTO.php
@@ -59,7 +59,7 @@ public function transformPropertiesToAnArray(array $properties): array
      *
      * @return array
      */
-    private function handleArrayProperty(array $arrayData, string $name, array $value): array
+    protected function handleArrayProperty(array $arrayData, string $name, array $value): array
     {
         $arrayData[$name] = [];
         foreach ($value as $key => $item) {
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Platform.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Platform.php
index ee6637b..de711da 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Platform.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Platform.php
@@ -12,37 +12,37 @@ class Platform extends OrderRequestDTO
     /**
      * @var string Name of the platform.
      */
-    private $name;
+    protected $name;
 
     /**
      * @var string Version of the platform.
      */
-    private $version;
+    protected $version;
 
     /**
      * @var string|null Version of the plugin or platform module.
      */
-    private $pluginVersion;
+    protected $pluginVersion;
 
     /**
      * @var string uname of the shop server.
      */
-    private $uname;
+    protected $uname;
 
     /**
      * @var string DB used.
      */
-    private $dbName;
+    protected $dbName;
 
     /**
      * @var string Version of the DB.
      */
-    private $dbVersion;
+    protected $dbVersion;
 
     /**
      * @var string|null PHP interpreter version.
      */
-    private $phpVersion;
+    protected $phpVersion;
 
     /**
      * @param string $name
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/PreviousOrder.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/PreviousOrder.php
index bbf3ff7..ff6bbab 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/PreviousOrder.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/PreviousOrder.php
@@ -12,47 +12,47 @@ class PreviousOrder extends OrderRequestDTO
     /**
      * @var string Date (and time, if available) when this order was created or delivered, in ISO-8601 format.
      */
-    private $createdAt;
+    protected $createdAt;
 
     /**
      * @var int Total order amount including tax.
      */
-    private $amount;
+    protected $amount;
 
     /**
      * @var string Currency name for amount.
      */
-    private $currency;
+    protected $currency;
 
     /**
      * @var string|null The status of the order as reported in the platform.
      */
-    private $rawStatus;
+    protected $rawStatus;
 
     /**
      * @var string|null The mapped status value.
      */
-    private $status;
+    protected $status;
 
     /**
      * @var string|null Payment method as reported by the platform.
      */
-    private $paymentMethodRaw;
+    protected $paymentMethodRaw;
 
     /**
      * @var string|null Mapped payment methods.
      */
-    private $paymentMethod;
+    protected $paymentMethod;
 
     /**
      * @var string|null Previous order's delivery address postal code.
      */
-    private $postalCode;
+    protected $postalCode;
 
     /**
      * @var string|null Previous order's country code.
      */
-    private $countryCode;
+    protected $countryCode;
 
     /**
      * @param string $createdAt
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupPoint.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupPoint.php
index 4fec83c..32cdcec 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupPoint.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupPoint.php
@@ -16,47 +16,47 @@ class TrackingPickupPoint extends Tracking
     /**
      * @var string|null Permanent identifier for the operator that handed the delivery.
      */
-    private $operatorRef;
+    protected $operatorRef;
 
     /**
      * @var string|null Permanent identifier for the store that handled this delivery.
      */
-    private $storeRef;
+    protected $storeRef;
 
     /**
      * @var string|null When this delivery was available in the store.
      */
-    private $availableAt;
+    protected $availableAt;
 
     /**
      * @var string|null Address line 1 for the pickup point.
      */
-    private $addressLine1;
+    protected $addressLine1;
 
     /**
      * @var string|null Address line 2 for the pickup point.
      */
-    private $addressLine2;
+    protected $addressLine2;
 
     /**
      * @var string|null Postal code.
      */
-    private $postalCode;
+    protected $postalCode;
 
     /**
      * @var string|null City.
      */
-    private $city;
+    protected $city;
 
     /**
      * @var string|null State or region.
      */
-    private $state;
+    protected $state;
 
     /**
      * @var string|null Country code.
      */
-    private $countryCode;
+    protected $countryCode;
 
     /**
      * @param string $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupStore.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupStore.php
index ea450ba..3e45996 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupStore.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPickupStore.php
@@ -16,47 +16,47 @@ class TrackingPickupStore extends Tracking
     /**
      * @var string|null Permanent identifier for the operator that handed the delivery.
      */
-    private $operatorRef;
+    protected $operatorRef;
 
     /**
      * @var string|null Permanent identifier for the store that handled this delivery.
      */
-    private $storeRef;
+    protected $storeRef;
 
     /**
      * @var string|null When this delivery was available in the store.
      */
-    private $availableAt;
+    protected $availableAt;
 
     /**
      * @var string|null Address line 1 for the store.
      */
-    private $addressLine1;
+    protected $addressLine1;
 
     /**
      * @var string|null Address line 2 for the store.
      */
-    private $addressLine2;
+    protected $addressLine2;
 
     /**
      * @var string|null Postal code.
      */
-    private $postalCode;
+    protected $postalCode;
 
     /**
      * @var string|null City.
      */
-    private $city;
+    protected $city;
 
     /**
      * @var string|null State or region.
      */
-    private $state;
+    protected $state;
 
     /**
      * @var string|null Country code.
      */
-    private $countryCode;
+    protected $countryCode;
 
     /**
      * @param string $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPostal.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPostal.php
index d125aa5..e49a7ad 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPostal.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Tracking/TrackingPostal.php
@@ -16,12 +16,12 @@ class TrackingPostal extends Tracking
     /**
      * @var string The name of the company that handled this delivery.
      */
-    private $carrier;
+    protected $carrier;
 
     /**
      * @var string|null Tracking URL.
      */
-    private $trackingUrl;
+    protected $trackingUrl;
 
     /**
      * @param string $reference
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/UpdateOrderRequest.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/UpdateOrderRequest.php
index c339603..50a8b0f 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/UpdateOrderRequest.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/UpdateOrderRequest.php
@@ -21,12 +21,12 @@ class UpdateOrderRequest extends BaseOrderRequest
     /**
      * @var Cart Fields describing the unshipped cart.
      */
-    private $unshippedCart;
+    protected $unshippedCart;
 
     /**
      * @var Cart Fields describing the shipped cart.
      */
-    private $shippedCart;
+    protected $shippedCart;
 
     /**
      * @param Merchant $merchant
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Vehicle.php b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Vehicle.php
index cad6739..45b88ac 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderRequest/Vehicle.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderRequest/Vehicle.php
@@ -12,27 +12,27 @@ class Vehicle extends OrderRequestDTO
     /**
      * @var string Plaque identification from customer's vehicle.
      */
-    private $plaque;
+    protected $plaque;
 
     /**
      * @var string|null Brand from customer's vehicle.
      */
-    private $brand;
+    protected $brand;
 
     /**
      * @var string|null Model from customer's vehicle.
      */
-    private $model;
+    protected $model;
 
     /**
      * @var string|null Frame identification from customer's vehicle.
      */
-    private $frame;
+    protected $frame;
 
     /**
      * @var string|null First registration date plaque from customer's vehicle.
      */
-    private $firstRegistrationDate;
+    protected $firstRegistrationDate;
 
     /**
      * @param string $plaque
diff --git a/src/BusinessLogic/Domain/Order/Models/OrderUpdateData.php b/src/BusinessLogic/Domain/Order/Models/OrderUpdateData.php
index 3d46d89..63f33d5 100644
--- a/src/BusinessLogic/Domain/Order/Models/OrderUpdateData.php
+++ b/src/BusinessLogic/Domain/Order/Models/OrderUpdateData.php
@@ -17,27 +17,27 @@ class OrderUpdateData extends DataTransferObject
     /**
      * @var string
      */
-    private $orderShopReference;
+    protected $orderShopReference;
 
     /**
      * @var Cart|null
      */
-    private $shippedCart;
+    protected $shippedCart;
 
     /**
      * @var Cart|null
      */
-    private $unshippedCart;
+    protected $unshippedCart;
 
     /**
      * @var Address|null
      */
-    private $deliveryAddress;
+    protected $deliveryAddress;
 
     /**
      * @var Address|null
      */
-    private $invoiceAddress;
+    protected $invoiceAddress;
 
     /**
      * @param string $orderShopReference
diff --git a/src/BusinessLogic/Domain/Order/Models/PaymentMethod.php b/src/BusinessLogic/Domain/Order/Models/PaymentMethod.php
index 0aae407..ab20a73 100644
--- a/src/BusinessLogic/Domain/Order/Models/PaymentMethod.php
+++ b/src/BusinessLogic/Domain/Order/Models/PaymentMethod.php
@@ -14,17 +14,17 @@ class PaymentMethod extends DataTransferObject
     /**
      * @var string
      */
-    private $id;
+    protected $id;
 
     /**
      * @var string
      */
-    private $name;
+    protected $name;
 
     /**
      * @var string|null
      */
-    private $icon;
+    protected $icon;
 
     /**
      * @param string $id
diff --git a/src/BusinessLogic/Domain/Order/Models/SeQuraForm.php b/src/BusinessLogic/Domain/Order/Models/SeQuraForm.php
index 9c9f09a..743cf3f 100644
--- a/src/BusinessLogic/Domain/Order/Models/SeQuraForm.php
+++ b/src/BusinessLogic/Domain/Order/Models/SeQuraForm.php
@@ -12,7 +12,7 @@ class SeQuraForm
     /**
      * @var string HTML form from SeQura.
      */
-    private $form;
+    protected $form;
 
     /**
      * @param string $form
diff --git a/src/BusinessLogic/Domain/Order/OrderRequestStatusMapping.php b/src/BusinessLogic/Domain/Order/OrderRequestStatusMapping.php
index fac1a43..b21c650 100644
--- a/src/BusinessLogic/Domain/Order/OrderRequestStatusMapping.php
+++ b/src/BusinessLogic/Domain/Order/OrderRequestStatusMapping.php
@@ -17,7 +17,7 @@ class OrderRequestStatusMapping
      *
      * @var array
      */
-    private static $statusMap = [
+    protected static $statusMap = [
         OrderStates::STATE_APPROVED => OrderRequestStates::CONFIRMED,
         OrderStates::STATE_NEEDS_REVIEW => OrderRequestStates::ON_HOLD,
         OrderStates::STATE_CANCELLED => OrderRequestStates::CANCELLED
diff --git a/src/BusinessLogic/Domain/Order/Service/OrderService.php b/src/BusinessLogic/Domain/Order/Service/OrderService.php
index 0a1ea1f..d041792 100644
--- a/src/BusinessLogic/Domain/Order/Service/OrderService.php
+++ b/src/BusinessLogic/Domain/Order/Service/OrderService.php
@@ -34,11 +34,11 @@ class OrderService
     /**
      * @var OrderProxyInterface
      */
-    private $proxy;
+    protected $proxy;
     /**
      * @var SeQuraOrderRepositoryInterface
      */
-    private $orderRepository;
+    protected $orderRepository;
 
     public function __construct(OrderProxyInterface $proxy, SeQuraOrderRepositoryInterface $orderRepository)
     {
@@ -210,7 +210,7 @@ public function updateOrder(OrderUpdateData $orderUpdateData): SeQuraOrder
      * @throws HttpRequestException
      * @throws Exception
      */
-    private function tryOrderUpdate(SeQuraOrder $order)
+    protected function tryOrderUpdate(SeQuraOrder $order)
     {
         try {
             $this->proxy->updateOrder($this->getUpdateOrderRequest($order));
@@ -230,7 +230,7 @@ private function tryOrderUpdate(SeQuraOrder $order)
      *
      * @return SeQuraOrder|null
      */
-    private function getExistingOrderFor(CreateOrderRequest $request): ?SeQuraOrder
+    protected function getExistingOrderFor(CreateOrderRequest $request): ?SeQuraOrder
     {
         $existingOrder = null;
         if ($request->getCart()->getCartRef()) {
@@ -255,7 +255,7 @@ private function getExistingOrderFor(CreateOrderRequest $request): ?SeQuraOrder
      *
      * @throws Exception
      */
-    private function getUpdateOrderRequest(SeQuraOrder $order): UpdateOrderRequest
+    protected function getUpdateOrderRequest(SeQuraOrder $order): UpdateOrderRequest
     {
         return UpdateOrderRequest::fromArray([
             'merchant' => $order->getMerchant()->toArray(),
@@ -279,7 +279,7 @@ private function getUpdateOrderRequest(SeQuraOrder $order): UpdateOrderRequest
      *
      * @return bool
      */
-    private function areObjectsEqual($object1, $object2): bool
+    protected function areObjectsEqual($object1, $object2): bool
     {
         if (method_exists($object1, 'toArray') && method_exists($object2, 'toArray')) {
             return json_encode($object1->toArray()) === json_encode($object2->toArray());
diff --git a/src/BusinessLogic/Domain/OrderReport/Listeners/TickEventListener.php b/src/BusinessLogic/Domain/OrderReport/Listeners/TickEventListener.php
index 856051d..0a063db 100644
--- a/src/BusinessLogic/Domain/OrderReport/Listeners/TickEventListener.php
+++ b/src/BusinessLogic/Domain/OrderReport/Listeners/TickEventListener.php
@@ -36,7 +36,7 @@ public static function handle(): void
     /**
      * @return StatisticalDataService
      */
-    private static function getStatisticalDataService(): StatisticalDataService
+    protected static function getStatisticalDataService(): StatisticalDataService
     {
         return ServiceRegister::getService(StatisticalDataService::class);
     }
@@ -44,7 +44,7 @@ private static function getStatisticalDataService(): StatisticalDataService
     /**
      * @return QueueService
      */
-    private static function getQueueService(): QueueService
+    protected static function getQueueService(): QueueService
     {
         return ServiceRegister::getService(QueueService::class);
     }
diff --git a/src/BusinessLogic/Domain/OrderReport/Models/OrderReport.php b/src/BusinessLogic/Domain/OrderReport/Models/OrderReport.php
index d9b9496..62ba65c 100644
--- a/src/BusinessLogic/Domain/OrderReport/Models/OrderReport.php
+++ b/src/BusinessLogic/Domain/OrderReport/Models/OrderReport.php
@@ -27,52 +27,52 @@ class OrderReport extends OrderRequestDTO
     /**
      * @var string String containing state of the order.
      */
-    private $state;
+    protected $state;
 
     /**
      * @var string|null String containing the time of sending the order report.
      */
-    private $sentAt;
+    protected $sentAt;
 
     /**
      * @var MerchantReference Order id(s) used by the merchant.
      */
-    private $merchantReference;
+    protected $merchantReference;
 
     /**
      * @var Cart Fields describing the shopping cart.
      */
-    private $cart;
+    protected $cart;
 
     /**
      * @var Tracking[]|null A list of trackings for the order.
      */
-    private $trackings;
+    protected $trackings;
 
     /**
      * @var Cart|null Fields describing the remaining cart.
      */
-    private $remainingCart;
+    protected $remainingCart;
 
     /**
      * @var DeliveryMethod Delivery method used on the purchase.
      */
-    private $deliveryMethod;
+    protected $deliveryMethod;
 
     /**
      * @var Address|null Fields describing the delivery address.
      */
-    private $deliveryAddress;
+    protected $deliveryAddress;
 
     /**
      * @var Address|null Fields describing the invoice address.
      */
-    private $invoiceAddress;
+    protected $invoiceAddress;
 
     /**
      * @var Customer Fields describing the customer.
      */
-    private $customer;
+    protected $customer;
 
     /**
      * @param string $state
diff --git a/src/BusinessLogic/Domain/OrderReport/Models/OrderStatistics.php b/src/BusinessLogic/Domain/OrderReport/Models/OrderStatistics.php
index dba1680..599234b 100644
--- a/src/BusinessLogic/Domain/OrderReport/Models/OrderStatistics.php
+++ b/src/BusinessLogic/Domain/OrderReport/Models/OrderStatistics.php
@@ -15,52 +15,52 @@ class OrderStatistics extends OrderRequestDTO
     /**
      * @var string Filed representing the date of order completion.
      */
-    private $completedAt;
+    protected $completedAt;
 
     /**
      * @var string Field representing the order currency.
      */
-    private $currency;
+    protected $currency;
 
     /**
      * @var int|null Field representing the total amount paid or due to pay.
      */
-    private $amount;
+    protected $amount;
 
     /**
      * @var MerchantReference|null Order id(s) used by the merchant.
      */
-    private $merchantReference;
+    protected $merchantReference;
 
     /**
      * @var string|null Name or type of payment method.
      */
-    private $paymentMethod;
+    protected $paymentMethod;
 
     /**
      * @var string|null ISO-3166-1 country code of the delivery address.
      */
-    private $country;
+    protected $country;
 
     /**
      * @var string|null Device used in purchase.
      */
-    private $device;
+    protected $device;
 
     /**
      * @var string|null Status of the order.
      */
-    private $status;
+    protected $status;
 
     /**
      * @var string|null Your platform's string representation of the order status.
      */
-    private $rawStatus;
+    protected $rawStatus;
 
     /**
      * @var bool|null Was the shopper offered to use SeQura in the checkout?
      */
-    private $sequraOffered;
+    protected $sequraOffered;
 
     /**
      * @param string $completedAt
diff --git a/src/BusinessLogic/Domain/OrderReport/Models/ReportData.php b/src/BusinessLogic/Domain/OrderReport/Models/ReportData.php
index 7178309..e68456c 100644
--- a/src/BusinessLogic/Domain/OrderReport/Models/ReportData.php
+++ b/src/BusinessLogic/Domain/OrderReport/Models/ReportData.php
@@ -12,17 +12,17 @@ class ReportData
     /**
      * @var string
      */
-    private $merchantId;
+    protected $merchantId;
 
     /**
      * @var string[]
      */
-    private $reportOrderIds;
+    protected $reportOrderIds;
 
     /**
      * @var string[]|null
      */
-    private $statisticsOrderIds;
+    protected $statisticsOrderIds;
 
     /**
      * @param string $merchantId
diff --git a/src/BusinessLogic/Domain/OrderReport/Models/SendOrderReportRequest.php b/src/BusinessLogic/Domain/OrderReport/Models/SendOrderReportRequest.php
index 21d86db..68ec7d3 100644
--- a/src/BusinessLogic/Domain/OrderReport/Models/SendOrderReportRequest.php
+++ b/src/BusinessLogic/Domain/OrderReport/Models/SendOrderReportRequest.php
@@ -24,22 +24,22 @@ class SendOrderReportRequest extends OrderRequestDTO
     /**
      * @var Merchant Fields describing the merchant.
      */
-    private $merchant;
+    protected $merchant;
 
     /**
      * @var OrderReport[] A list of order reports.
      */
-    private $orders;
+    protected $orders;
 
     /**
      * @var Statistics|null Filed containing a list of statistical order data.
      */
-    private $statistics;
+    protected $statistics;
 
     /**
      * @var Platform Fields describing the store platform.
      */
-    private $platform;
+    protected $platform;
 
     /**
      * @param Merchant $merchant
diff --git a/src/BusinessLogic/Domain/OrderReport/Models/Statistics.php b/src/BusinessLogic/Domain/OrderReport/Models/Statistics.php
index f4d78a2..b4bcf83 100644
--- a/src/BusinessLogic/Domain/OrderReport/Models/Statistics.php
+++ b/src/BusinessLogic/Domain/OrderReport/Models/Statistics.php
@@ -14,7 +14,7 @@ class Statistics extends OrderRequestDTO
     /**
      * @var OrderStatistics[]
      */
-    private $orders;
+    protected $orders;
 
     /**
      * @param OrderStatistics[] $orders
diff --git a/src/BusinessLogic/Domain/OrderReport/OrderReporter.php b/src/BusinessLogic/Domain/OrderReport/OrderReporter.php
index 670c939..ab4c2a4 100644
--- a/src/BusinessLogic/Domain/OrderReport/OrderReporter.php
+++ b/src/BusinessLogic/Domain/OrderReport/OrderReporter.php
@@ -24,7 +24,7 @@ class OrderReporter extends Orchestrator
     protected const ORDERS_PER_BACH = 5000;
     protected $page = 1;
 
-    private $storeId;
+    protected $storeId;
 
     public function __construct()
     {
@@ -104,7 +104,7 @@ protected function getSubTask(): ?ExecutionDetails
      *
      * @throws QueueStorageUnavailableException
      */
-    private function getSubTaskInContext(): ?ExecutionDetails
+    protected function getSubTaskInContext(): ?ExecutionDetails
     {
         $reportOrderIds = $this->getShopOrderService()->getReportOrderIds($this->page, static::ORDERS_PER_BACH);
 
@@ -134,7 +134,7 @@ private function getSubTaskInContext(): ?ExecutionDetails
      *
      * @return ShopOrderService
      */
-    private function getShopOrderService(): ShopOrderService
+    protected function getShopOrderService(): ShopOrderService
     {
         return ServiceRegister::getService(ShopOrderService::class);
     }
@@ -144,7 +144,7 @@ private function getShopOrderService(): ShopOrderService
      *
      * @return StatisticalDataRepositoryInterface
      */
-    private function getStatisticalDataRepository(): StatisticalDataRepositoryInterface
+    protected function getStatisticalDataRepository(): StatisticalDataRepositoryInterface
     {
         return ServiceRegister::getService(StatisticalDataRepositoryInterface::class);
     }
@@ -154,7 +154,7 @@ private function getStatisticalDataRepository(): StatisticalDataRepositoryInterf
      *
      * @return CountryConfigurationRepositoryInterface
      */
-    private function getCountryConfigurationRepository(): CountryConfigurationRepositoryInterface
+    protected function getCountryConfigurationRepository(): CountryConfigurationRepositoryInterface
     {
         return ServiceRegister::getService(CountryConfigurationRepositoryInterface::class);
     }
diff --git a/src/BusinessLogic/Domain/OrderReport/Service/OrderReportService.php b/src/BusinessLogic/Domain/OrderReport/Service/OrderReportService.php
index da46a5d..e9a8252 100644
--- a/src/BusinessLogic/Domain/OrderReport/Service/OrderReportService.php
+++ b/src/BusinessLogic/Domain/OrderReport/Service/OrderReportService.php
@@ -25,17 +25,17 @@ class OrderReportService
     /**
      * @var OrderReportProxyInterface
      */
-    private $proxy;
+    protected $proxy;
 
     /**
      * @var OrderReportServiceInterface
      */
-    private $integrationOrderReportService;
+    protected $integrationOrderReportService;
 
     /**
      * @var SendReportRepositoryInterface
      */
-    private $sendReportRepository;
+    protected $sendReportRepository;
 
     /**
      * @param OrderReportProxyInterface $proxy
@@ -106,7 +106,7 @@ public function setSendReportTime(int $time): void
      *
      * @throws InvalidUrlException
      */
-    private function createSendOrderReportRequest(
+    protected function createSendOrderReportRequest(
         string $merchantId,
         array $orderReports,
         array $orderStatistics = null
diff --git a/src/BusinessLogic/Domain/OrderReport/Tasks/OrderReportTask.php b/src/BusinessLogic/Domain/OrderReport/Tasks/OrderReportTask.php
index 2ab2e80..d6f4598 100644
--- a/src/BusinessLogic/Domain/OrderReport/Tasks/OrderReportTask.php
+++ b/src/BusinessLogic/Domain/OrderReport/Tasks/OrderReportTask.php
@@ -23,22 +23,22 @@ class OrderReportTask extends Task
     /**
      * @var string
      */
-    private $merchantId;
+    protected $merchantId;
 
     /**
      * @var string[]
      */
-    private $reportOrderIds;
+    protected $reportOrderIds;
 
     /**
      * @var string[] | null
      */
-    private $statisticsOrderIds;
+    protected $statisticsOrderIds;
 
     /**
      * @var string
      */
-    private $storeId;
+    protected $storeId;
 
     /**
      * OrderReportTask constructor.
@@ -154,7 +154,7 @@ function () {
      * @throws HttpRequestException
      * @throws InvalidUrlException
      */
-    private function doExecute(): void
+    protected function doExecute(): void
     {
         $this->getOrderReportService()->sendReport(
             new ReportData($this->merchantId, $this->reportOrderIds, $this->statisticsOrderIds)
@@ -168,7 +168,7 @@ private function doExecute(): void
      *
      * @return OrderReportService
      */
-    private function getOrderReportService(): OrderReportService
+    protected function getOrderReportService(): OrderReportService
     {
         return ServiceRegister::getService(OrderReportService::class);
     }
diff --git a/src/BusinessLogic/Domain/OrderStatus/Models/OrderStatus.php b/src/BusinessLogic/Domain/OrderStatus/Models/OrderStatus.php
index 696fdd9..c5d766e 100644
--- a/src/BusinessLogic/Domain/OrderStatus/Models/OrderStatus.php
+++ b/src/BusinessLogic/Domain/OrderStatus/Models/OrderStatus.php
@@ -15,12 +15,12 @@ class OrderStatus
     /**
      * @var string
      */
-    private $id;
+    protected $id;
 
     /**
      * @var string
      */
-    private $name;
+    protected $name;
 
     /**
      * @param string $id
diff --git a/src/BusinessLogic/Domain/OrderStatusSettings/Models/OrderStatusMapping.php b/src/BusinessLogic/Domain/OrderStatusSettings/Models/OrderStatusMapping.php
index 7798c69..7963238 100644
--- a/src/BusinessLogic/Domain/OrderStatusSettings/Models/OrderStatusMapping.php
+++ b/src/BusinessLogic/Domain/OrderStatusSettings/Models/OrderStatusMapping.php
@@ -17,12 +17,12 @@ class OrderStatusMapping
     /**
      * @var string
      */
-    private $sequraStatus;
+    protected $sequraStatus;
 
     /**
      * @var string
      */
-    private $shopStatus;
+    protected $shopStatus;
 
     /**
      * @param string $seQuraStatus
diff --git a/src/BusinessLogic/Domain/OrderStatusSettings/Services/OrderStatusSettingsService.php b/src/BusinessLogic/Domain/OrderStatusSettings/Services/OrderStatusSettingsService.php
index d7c5d1e..593dbcc 100644
--- a/src/BusinessLogic/Domain/OrderStatusSettings/Services/OrderStatusSettingsService.php
+++ b/src/BusinessLogic/Domain/OrderStatusSettings/Services/OrderStatusSettingsService.php
@@ -18,12 +18,12 @@ class OrderStatusSettingsService implements OrderStatusProvider
     /**
      * @var OrderStatusSettingsRepositoryInterface
      */
-    private $orderStatusSettingsRepository;
+    protected $orderStatusSettingsRepository;
 
     /**
      * @var ShopOrderStatusesServiceInterface
      */
-    private $integrationShopOrderStatusesService;
+    protected $integrationShopOrderStatusesService;
 
     /**
      * @param OrderStatusSettingsRepositoryInterface $orderStatusSettingsRepository
diff --git a/src/BusinessLogic/Domain/OrderStatusSettings/Services/ShopOrderStatusesService.php b/src/BusinessLogic/Domain/OrderStatusSettings/Services/ShopOrderStatusesService.php
index 2cddfcd..3d56226 100644
--- a/src/BusinessLogic/Domain/OrderStatusSettings/Services/ShopOrderStatusesService.php
+++ b/src/BusinessLogic/Domain/OrderStatusSettings/Services/ShopOrderStatusesService.php
@@ -18,7 +18,7 @@ class ShopOrderStatusesService
     /**
      * @var ShopOrderStatusesServiceInterface
      */
-    private $integrationShopOrderStatusesService;
+    protected $integrationShopOrderStatusesService;
 
     public function __construct(ShopOrderStatusesServiceInterface $integrationShopOrderStatusesService)
     {
diff --git a/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraCost.php b/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraCost.php
index 1d11803..d84e291 100644
--- a/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraCost.php
+++ b/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraCost.php
@@ -12,22 +12,22 @@ class SeQuraCost
     /**
      * @var int Setup fee to pay the order.
      */
-    private $setupFee;
+    protected $setupFee;
 
     /**
      * @var int Installment fee to pay the order.
      */
-    private $instalmentFee;
+    protected $instalmentFee;
 
     /**
      * @var int Down payment fee to pay the order.
      */
-    private $downPaymentFees;
+    protected $downPaymentFees;
 
     /**
      * @var int Total amount for each instalment to pay the order.
      */
-    private $instalmentTotal;
+    protected $instalmentTotal;
 
     /**
      * @param int $setupFee
diff --git a/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethod.php b/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethod.php
index ea57c00..8aecf22 100644
--- a/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethod.php
+++ b/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethod.php
@@ -15,67 +15,67 @@ class SeQuraPaymentMethod
     /**
      * @var string SeQura product code.
      */
-    private $product;
+    protected $product;
 
     /**
      * @var string|null SeQura campaign code.
      */
-    private $campaign;
+    protected $campaign;
 
     /**
      * @var string Payment method title.
      */
-    private $title;
+    protected $title;
 
     /**
      * @var string Longer payment method title.
      */
-    private $longTitle;
+    protected $longTitle;
 
     /**
      * @var string|null Payment method claim.
      */
-    private $claim;
+    protected $claim;
 
     /**
      * @var string|null Payment method description.
      */
-    private $description;
+    protected $description;
 
     /**
      * @var string|null Serialized HTML element.
      */
-    private $icon;
+    protected $icon;
 
     /**
      * @var SeQuraCost
      */
-    private $cost;
+    protected $cost;
 
     /**
      * @var string|null Cost description.
      */
-    private $costDescription;
+    protected $costDescription;
 
     /**
      * @var DateTime Method available from this date on.
      */
-    private $startsAt;
+    protected $startsAt;
 
     /**
      * @var DateTime Method available until this date.
      */
-    private $endsAt;
+    protected $endsAt;
 
     /**
      * @var int|null Minimum supported order amount for this payment method.
      */
-    private $minAmount;
+    protected $minAmount;
 
     /**
      * @var int|null Maximum supported order amount for this payment method.
      */
-    private $maxAmount;
+    protected $maxAmount;
 
     /**
      * @param string $product
diff --git a/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethodCategory.php b/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethodCategory.php
index 965fdea..9f6ff7f 100644
--- a/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethodCategory.php
+++ b/src/BusinessLogic/Domain/PaymentMethod/Models/SeQuraPaymentMethodCategory.php
@@ -9,22 +9,22 @@ class SeQuraPaymentMethodCategory
     /**
      * @var string String containing the title of the category.
      */
-    private $title;
+    protected $title;
 
     /**
      * @var string String containing the description of the category.
      */
-    private $description;
+    protected $description;
 
     /**
      * @var string|null String containing icon for the methods category in svg format.
      */
-    private $icon;
+    protected $icon;
 
     /**
      * @var SeQuraPaymentMethod[] Array of payment methods.
      */
-    private $methods;
+    protected $methods;
 
     /**
      * @param string $title
diff --git a/src/BusinessLogic/Domain/PaymentMethod/Services/PaymentMethodsService.php b/src/BusinessLogic/Domain/PaymentMethod/Services/PaymentMethodsService.php
index 349f5d3..0ae2944 100644
--- a/src/BusinessLogic/Domain/PaymentMethod/Services/PaymentMethodsService.php
+++ b/src/BusinessLogic/Domain/PaymentMethod/Services/PaymentMethodsService.php
@@ -17,7 +17,7 @@ class PaymentMethodsService
     /**
      * @var MerchantProxyInterface
      */
-    private $merchantProxy;
+    protected $merchantProxy;
 
     /**
      * @param MerchantProxyInterface $merchantProxy
diff --git a/src/BusinessLogic/Domain/PromotionalWidgets/Models/ValidateAssetsKeyRequest.php b/src/BusinessLogic/Domain/PromotionalWidgets/Models/ValidateAssetsKeyRequest.php
index bef620e..bf1ee8f 100644
--- a/src/BusinessLogic/Domain/PromotionalWidgets/Models/ValidateAssetsKeyRequest.php
+++ b/src/BusinessLogic/Domain/PromotionalWidgets/Models/ValidateAssetsKeyRequest.php
@@ -12,19 +12,19 @@ class ValidateAssetsKeyRequest
     /**
      * @var string
      */
-    private $merchantId;
+    protected $merchantId;
     /**
      * @var array
      */
-    private $paymentMethodIds;
+    protected $paymentMethodIds;
     /**
      * @var string
      */
-    private $assetsKey;
+    protected $assetsKey;
     /**
      * @var string
      */
-    private $mode;
+    protected $mode;
 
     /**
      * @param string $merchantId
diff --git a/src/BusinessLogic/Domain/PromotionalWidgets/Models/WidgetLabels.php b/src/BusinessLogic/Domain/PromotionalWidgets/Models/WidgetLabels.php
index 9fddded..a87c6a1 100644
--- a/src/BusinessLogic/Domain/PromotionalWidgets/Models/WidgetLabels.php
+++ b/src/BusinessLogic/Domain/PromotionalWidgets/Models/WidgetLabels.php
@@ -14,14 +14,14 @@ class WidgetLabels
      *
      * @var string[]
      */
-    private $messages;
+    protected $messages;
     /**
      * Mini widget messages for price below limit
      * in supported languages.
      *
      * @var string[]
      */
-    private $messagesBelowLimit;
+    protected $messagesBelowLimit;
 
     /**
      * @param string[] $messages
diff --git a/src/BusinessLogic/Domain/PromotionalWidgets/Services/WidgetSettingsService.php b/src/BusinessLogic/Domain/PromotionalWidgets/Services/WidgetSettingsService.php
index dd31685..3ebbef7 100644
--- a/src/BusinessLogic/Domain/PromotionalWidgets/Services/WidgetSettingsService.php
+++ b/src/BusinessLogic/Domain/PromotionalWidgets/Services/WidgetSettingsService.php
@@ -22,23 +22,23 @@ class WidgetSettingsService
     /**
      * @var WidgetSettingsRepositoryInterface
      */
-    private $widgetSettingsRepository;
+    protected $widgetSettingsRepository;
     /**
      * @var PaymentMethodsService
      */
-    private $paymentMethodsService;
+    protected $paymentMethodsService;
     /**
      * @var CountryConfigurationService
      */
-    private $countryConfigService;
+    protected $countryConfigService;
     /**
      * @var ConnectionService
      */
-    private $connectionService;
+    protected $connectionService;
     /**
      * @var WidgetsProxyInterface
      */
-    private $widgetsProxy;
+    protected $widgetsProxy;
 
     /**
      * @param WidgetSettingsRepositoryInterface $widgetSettingsRepository
diff --git a/src/BusinessLogic/Domain/SendReport/Models/SendReport.php b/src/BusinessLogic/Domain/SendReport/Models/SendReport.php
index 932944b..f21a0aa 100644
--- a/src/BusinessLogic/Domain/SendReport/Models/SendReport.php
+++ b/src/BusinessLogic/Domain/SendReport/Models/SendReport.php
@@ -12,7 +12,7 @@ class SendReport
     /**
      * @var int
      */
-    private $sendReportTime;
+    protected $sendReportTime;
 
     /**
      * @param int $sendReportTime
diff --git a/src/BusinessLogic/Domain/StatisticalData/Models/StatisticalData.php b/src/BusinessLogic/Domain/StatisticalData/Models/StatisticalData.php
index 458ab34..148501f 100644
--- a/src/BusinessLogic/Domain/StatisticalData/Models/StatisticalData.php
+++ b/src/BusinessLogic/Domain/StatisticalData/Models/StatisticalData.php
@@ -12,7 +12,7 @@ class StatisticalData
     /**
      * @var bool
      */
-    private $sendStatisticalData;
+    protected $sendStatisticalData;
 
     /**
      * @param bool $sendStatisticalData
diff --git a/src/BusinessLogic/Domain/Stores/Models/Store.php b/src/BusinessLogic/Domain/Stores/Models/Store.php
index 06d6df5..0704e6e 100644
--- a/src/BusinessLogic/Domain/Stores/Models/Store.php
+++ b/src/BusinessLogic/Domain/Stores/Models/Store.php
@@ -15,12 +15,12 @@ class Store
     /**
      * @var string
      */
-    private $storeId;
+    protected $storeId;
 
     /**
      * @var string
      */
-    private $storeName;
+    protected $storeName;
 
     /**
      * @param string $storeId
diff --git a/src/BusinessLogic/Domain/Stores/Services/StoreService.php b/src/BusinessLogic/Domain/Stores/Services/StoreService.php
index 945bbc4..4361101 100644
--- a/src/BusinessLogic/Domain/Stores/Services/StoreService.php
+++ b/src/BusinessLogic/Domain/Stores/Services/StoreService.php
@@ -19,12 +19,12 @@ class StoreService
     /**
      * @var ConnectionDataRepositoryInterface
      */
-    private $connectionDataRepository;
+    protected $connectionDataRepository;
 
     /**
      * @var StoreServiceInterface
      */
-    private $integrationStoreService;
+    protected $integrationStoreService;
 
     public function __construct(
         StoreServiceInterface $integrationStoreService,
@@ -85,7 +85,7 @@ public function getConnectedStores(): array
      *
      * @return string
      */
-    private function getFirstConnectedStoreId(): string
+    protected function getFirstConnectedStoreId(): string
     {
         $oldestStoreId = $this->connectionDataRepository->getOldestConnectionSettingsStoreId();
 
diff --git a/src/BusinessLogic/Domain/Version/Models/Version.php b/src/BusinessLogic/Domain/Version/Models/Version.php
index fa4d664..740a30e 100644
--- a/src/BusinessLogic/Domain/Version/Models/Version.php
+++ b/src/BusinessLogic/Domain/Version/Models/Version.php
@@ -12,15 +12,15 @@ class Version
     /**
      * @var string
      */
-    private $current;
+    protected $current;
     /**
      * @var string | null
      */
-    private $new;
+    protected $new;
     /**
      * @var string | null
      */
-    private $downloadNewVersionUrl;
+    protected $downloadNewVersionUrl;
 
     /**
      * @param string $current
diff --git a/src/BusinessLogic/Domain/Version/Services/VersionService.php b/src/BusinessLogic/Domain/Version/Services/VersionService.php
index 1b61168..edb9ab3 100644
--- a/src/BusinessLogic/Domain/Version/Services/VersionService.php
+++ b/src/BusinessLogic/Domain/Version/Services/VersionService.php
@@ -18,7 +18,7 @@ class VersionService
     /**
      * @var VersionServiceInterface
      */
-    private $integrationVersionService;
+    protected $integrationVersionService;
 
     public function __construct(VersionServiceInterface $integrationVersionService)
     {
diff --git a/src/BusinessLogic/SeQuraAPI/Connection/Request/ValidateConnectionHttpRequest.php b/src/BusinessLogic/SeQuraAPI/Connection/Request/ValidateConnectionHttpRequest.php
index 6a0893e..56c0988 100644
--- a/src/BusinessLogic/SeQuraAPI/Connection/Request/ValidateConnectionHttpRequest.php
+++ b/src/BusinessLogic/SeQuraAPI/Connection/Request/ValidateConnectionHttpRequest.php
@@ -31,7 +31,7 @@ public function __construct(ValidateConnectionRequest $request)
      *
      * @return string[]
      */
-    private function generateAuthHeaderForValidation(AuthorizationCredentials $authorizationCredentials): array
+    protected function generateAuthHeaderForValidation(AuthorizationCredentials $authorizationCredentials): array
     {
         $token = base64_encode(sprintf(
             '%s:%s',
diff --git a/src/BusinessLogic/SeQuraAPI/Exceptions/HttpApiRequestException.php b/src/BusinessLogic/SeQuraAPI/Exceptions/HttpApiRequestException.php
index 94a2e35..1839305 100644
--- a/src/BusinessLogic/SeQuraAPI/Exceptions/HttpApiRequestException.php
+++ b/src/BusinessLogic/SeQuraAPI/Exceptions/HttpApiRequestException.php
@@ -15,7 +15,7 @@ class HttpApiRequestException extends HttpRequestException
     /**
      * @var string[]
      */
-    private $errors = [];
+    protected $errors = [];
 
     /**
      * Creates an instance of HttpApiRequestException.
diff --git a/src/BusinessLogic/SeQuraAPI/Merchant/MerchantProxy.php b/src/BusinessLogic/SeQuraAPI/Merchant/MerchantProxy.php
index b837fac..409d81f 100644
--- a/src/BusinessLogic/SeQuraAPI/Merchant/MerchantProxy.php
+++ b/src/BusinessLogic/SeQuraAPI/Merchant/MerchantProxy.php
@@ -37,7 +37,7 @@ public function getAvailablePaymentMethods(GetAvailablePaymentMethodsRequest $re
      *
      * @throws Exception
      */
-    private function getListOfPaymentMethods(array $responseData): array
+    protected function getListOfPaymentMethods(array $responseData): array
     {
         $paymentMethods = [];
 
diff --git a/src/BusinessLogic/SeQuraAPI/Order/OrderProxy.php b/src/BusinessLogic/SeQuraAPI/Order/OrderProxy.php
index 2f92d42..fbed961 100644
--- a/src/BusinessLogic/SeQuraAPI/Order/OrderProxy.php
+++ b/src/BusinessLogic/SeQuraAPI/Order/OrderProxy.php
@@ -26,8 +26,8 @@
  */
 class OrderProxy extends AuthorizedProxy implements OrderProxyInterface
 {
-    private const PAYMENT_OPTIONS_KEY = 'payment_options';
-    private const METHODS_KEY = 'methods';
+    protected const PAYMENT_OPTIONS_KEY = 'payment_options';
+    protected const METHODS_KEY = 'methods';
 
     /**
      * @inheritDoc
@@ -104,7 +104,7 @@ public function getForm(GetFormRequest $request): SeQuraForm
      *
      * @return string
      */
-    private function getOrderUUID(array $headers): string
+    protected function getOrderUUID(array $headers): string
     {
         $headers = array_change_key_case($headers);
         $location = array_key_exists('location', $headers) ? $headers['location'] : '';
@@ -121,7 +121,7 @@ private function getOrderUUID(array $headers): string
      *
      * @throws Exception
      */
-    private function getListOfPaymentMethods(array $responseData): array
+    protected function getListOfPaymentMethods(array $responseData): array
     {
         $paymentMethods = [];
 
@@ -143,7 +143,7 @@ private function getListOfPaymentMethods(array $responseData): array
      *
      * @throws Exception
      */
-    private function getListOfPaymentMethodsInCategories(array $responseData): array
+    protected function getListOfPaymentMethodsInCategories(array $responseData): array
     {
         $paymentMethodCategories = [];
 
diff --git a/src/BusinessLogic/SeQuraAPI/Order/Requests/AcknowledgeOrderHttpRequest.php b/src/BusinessLogic/SeQuraAPI/Order/Requests/AcknowledgeOrderHttpRequest.php
index f1d00b8..1a5d468 100644
--- a/src/BusinessLogic/SeQuraAPI/Order/Requests/AcknowledgeOrderHttpRequest.php
+++ b/src/BusinessLogic/SeQuraAPI/Order/Requests/AcknowledgeOrderHttpRequest.php
@@ -28,7 +28,7 @@ public function __construct(string $id, BaseOrderRequest $request)
      *
      * @return array
      */
-    private function transformBody(BaseOrderRequest $request): array
+    protected function transformBody(BaseOrderRequest $request): array
     {
         $data['order'] = $request->toArray();
 
diff --git a/src/BusinessLogic/SeQuraAPI/Order/Requests/CreateOrderHttpRequest.php b/src/BusinessLogic/SeQuraAPI/Order/Requests/CreateOrderHttpRequest.php
index 91abe31..c7e576b 100644
--- a/src/BusinessLogic/SeQuraAPI/Order/Requests/CreateOrderHttpRequest.php
+++ b/src/BusinessLogic/SeQuraAPI/Order/Requests/CreateOrderHttpRequest.php
@@ -27,7 +27,7 @@ public function __construct(BaseOrderRequest $request)
      *
      * @return array
      */
-    private function transformBody(BaseOrderRequest $request): array
+    protected function transformBody(BaseOrderRequest $request): array
     {
         $data['order'] = $request->toArray();
 
diff --git a/src/BusinessLogic/SeQuraAPI/Order/Requests/GetFormHttpRequest.php b/src/BusinessLogic/SeQuraAPI/Order/Requests/GetFormHttpRequest.php
index 973b281..93716c2 100644
--- a/src/BusinessLogic/SeQuraAPI/Order/Requests/GetFormHttpRequest.php
+++ b/src/BusinessLogic/SeQuraAPI/Order/Requests/GetFormHttpRequest.php
@@ -25,7 +25,7 @@ public function __construct(GetFormRequest $request)
         );
     }
 
-    private function transformQueryParameters(GetFormRequest $request): array
+    protected function transformQueryParameters(GetFormRequest $request): array
     {
         $request->getProduct() && $params['product'] = $request->getProduct();
         $request->getCampaign() && $params['campaign'] = $request->getCampaign();
diff --git a/src/BusinessLogic/SeQuraAPI/Order/Requests/UpdateOrderHttpRequest.php b/src/BusinessLogic/SeQuraAPI/Order/Requests/UpdateOrderHttpRequest.php
index 8378c7d..685f114 100644
--- a/src/BusinessLogic/SeQuraAPI/Order/Requests/UpdateOrderHttpRequest.php
+++ b/src/BusinessLogic/SeQuraAPI/Order/Requests/UpdateOrderHttpRequest.php
@@ -33,7 +33,7 @@ public function __construct(string $merchantId, string $shopOrderReference, Upda
      *
      * @return array
      */
-    private function transformBody(BaseOrderRequest $request): array
+    protected function transformBody(BaseOrderRequest $request): array
     {
         $data['order'] = $request->toArray();
 
diff --git a/src/BusinessLogic/SeQuraAPI/OrderReport/Requests/SendOrderReportHttpRequest.php b/src/BusinessLogic/SeQuraAPI/OrderReport/Requests/SendOrderReportHttpRequest.php
index e7bb092..ef10dc6 100644
--- a/src/BusinessLogic/SeQuraAPI/OrderReport/Requests/SendOrderReportHttpRequest.php
+++ b/src/BusinessLogic/SeQuraAPI/OrderReport/Requests/SendOrderReportHttpRequest.php
@@ -27,7 +27,7 @@ public function __construct(SendOrderReportRequest $request)
      *
      * @return array
      */
-    private function transformBody(SendOrderReportRequest $request): array
+    protected function transformBody(SendOrderReportRequest $request): array
     {
         $data['delivery_report'] = $request->toArray();
 
diff --git a/src/BusinessLogic/SeQuraAPI/Widgets/Requests/ValidateAssetsKeyHttpRequest.php b/src/BusinessLogic/SeQuraAPI/Widgets/Requests/ValidateAssetsKeyHttpRequest.php
index c8e09d6..9a5e022 100644
--- a/src/BusinessLogic/SeQuraAPI/Widgets/Requests/ValidateAssetsKeyHttpRequest.php
+++ b/src/BusinessLogic/SeQuraAPI/Widgets/Requests/ValidateAssetsKeyHttpRequest.php
@@ -33,7 +33,7 @@ public function __construct(ValidateAssetsKeyRequest $request)
      *
      * @throws HttpNoAvailablePaymentMethods
      */
-    private function generatePaymentString(array $paymentMethodIds)
+    protected function generatePaymentString(array $paymentMethodIds)
     {
         $i1Key = array_search('i1', $paymentMethodIds);
 
diff --git a/src/BusinessLogic/TransactionLog/Listeners/AbortedListener.php b/src/BusinessLogic/TransactionLog/Listeners/AbortedListener.php
index 40207cf..4f0708a 100644
--- a/src/BusinessLogic/TransactionLog/Listeners/AbortedListener.php
+++ b/src/BusinessLogic/TransactionLog/Listeners/AbortedListener.php
@@ -14,7 +14,7 @@ class AbortedListener extends UpdateListener
     /**
     * @var string
     */
-    private const ABORT_DESCRIPTION = 'Order update action not supported on SeQura.';
+    protected const ABORT_DESCRIPTION = 'Order update action not supported on SeQura.';
 
     /**
      * @var QueueItemAbortedEvent
diff --git a/src/BusinessLogic/TransactionLog/Listeners/FailedListener.php b/src/BusinessLogic/TransactionLog/Listeners/FailedListener.php
index 33af573..a5cb5b4 100644
--- a/src/BusinessLogic/TransactionLog/Listeners/FailedListener.php
+++ b/src/BusinessLogic/TransactionLog/Listeners/FailedListener.php
@@ -14,7 +14,7 @@ class FailedListener extends UpdateListener
     /**
     * @var string
     */
-    private const FAILURE_DESCRIPTION = 'Order update action not supported on SeQura.';
+    protected const FAILURE_DESCRIPTION = 'Order update action not supported on SeQura.';
 
     /**
      * @var QueueItemFailedEvent
diff --git a/src/BusinessLogic/TransactionLog/Listeners/Listener.php b/src/BusinessLogic/TransactionLog/Listeners/Listener.php
index be83f7f..c0da854 100644
--- a/src/BusinessLogic/TransactionLog/Listeners/Listener.php
+++ b/src/BusinessLogic/TransactionLog/Listeners/Listener.php
@@ -17,7 +17,7 @@ abstract class Listener
     /**
      * @var TransactionLogService
      */
-    private $transactionLogService;
+    protected $transactionLogService;
 
     public function __construct(TransactionLogService $transactionLogService)
     {
diff --git a/src/BusinessLogic/TransactionLog/Models/TransactionData.php b/src/BusinessLogic/TransactionLog/Models/TransactionData.php
index cbc5aeb..4db4e81 100644
--- a/src/BusinessLogic/TransactionLog/Models/TransactionData.php
+++ b/src/BusinessLogic/TransactionLog/Models/TransactionData.php
@@ -14,23 +14,23 @@ class TransactionData extends DataTransferObject
     /**
      * @var string|int
      */
-    private $merchantReference;
+    protected $merchantReference;
     /**
      * @var string
      */
-    private $eventCode;
+    protected $eventCode;
     /**
      * @var int
      */
-    private $timestamp;
+    protected $timestamp;
     /**
      * @var string
      */
-    private $reason;
+    protected $reason;
     /**
      * @var bool
      */
-    private $isSuccessful;
+    protected $isSuccessful;
 
     /**
      * @param $merchantReference
diff --git a/src/BusinessLogic/TransactionLog/Services/TransactionLogService.php b/src/BusinessLogic/TransactionLog/Services/TransactionLogService.php
index 4e90265..d549971 100644
--- a/src/BusinessLogic/TransactionLog/Services/TransactionLogService.php
+++ b/src/BusinessLogic/TransactionLog/Services/TransactionLogService.php
@@ -30,15 +30,15 @@ class TransactionLogService
     /**
      * @var TransactionLogRepositoryInterface
      */
-    private $transactionLogRepository;
+    protected $transactionLogRepository;
     /**
      * @var OrderService
      */
-    private $orderService;
+    protected $orderService;
     /**
      * @var ShopOrderService
      */
-    private $integrationOrderService;
+    protected $integrationOrderService;
 
     public function __construct(
         TransactionLogRepositoryInterface $transactionLogRepository,
@@ -241,7 +241,7 @@ public function logsExist(DateTime $beforeDate): bool
      * @throws QueueItemDeserializationException
      * @throws OrderNotFoundException
      */
-    private function createTransactionLogInstance(QueueItem $item): TransactionLog
+    protected function createTransactionLogInstance(QueueItem $item): TransactionLog
     {
 
         /**
diff --git a/src/BusinessLogic/TransactionLog/Tasks/TransactionalOrderUpdateTask.php b/src/BusinessLogic/TransactionLog/Tasks/TransactionalOrderUpdateTask.php
index d8367f5..dde0edb 100644
--- a/src/BusinessLogic/TransactionLog/Tasks/TransactionalOrderUpdateTask.php
+++ b/src/BusinessLogic/TransactionLog/Tasks/TransactionalOrderUpdateTask.php
@@ -20,17 +20,17 @@ class TransactionalOrderUpdateTask extends TransactionalTask
     /**
      * @var OrderUpdateData
      */
-    private $orderUpdateData;
+    protected $orderUpdateData;
 
     /**
      * @var TransactionData
      */
-    private $transactionData;
+    protected $transactionData;
 
     /**
      * @var string
      */
-    private $storeId;
+    protected $storeId;
 
     /**
      * @param OrderUpdateData $orderUpdateData
@@ -65,7 +65,7 @@ function () {
      *
      * @throws Exception
      */
-    private function doExecute(): void
+    protected function doExecute(): void
     {
         $this->getOrderService()->updateOrder($this->orderUpdateData);
         $this->transactionData->setIsSuccessful(true);
@@ -75,7 +75,7 @@ private function doExecute(): void
     /**
      * @return OrderService
      */
-    private function getOrderService(): OrderService
+    protected function getOrderService(): OrderService
     {
         return ServiceRegister::getService(OrderService::class);
     }
diff --git a/src/BusinessLogic/Webhook/Tasks/OrderUpdateTask.php b/src/BusinessLogic/Webhook/Tasks/OrderUpdateTask.php
index 90fa45c..21257e0 100644
--- a/src/BusinessLogic/Webhook/Tasks/OrderUpdateTask.php
+++ b/src/BusinessLogic/Webhook/Tasks/OrderUpdateTask.php
@@ -21,12 +21,12 @@ class OrderUpdateTask extends Task
     /**
      * @var Webhook
      */
-    private $webhook;
+    protected $webhook;
 
     /**
      * @var string
      */
-    private $storeId;
+    protected $storeId;
 
     /**
      * Transforms array into an order update task object,
@@ -77,7 +77,7 @@ function () {
      *
      * @return void
      */
-    private function doExecute(): void
+    protected function doExecute(): void
     {
         $shopStatus = $this->getOrderStatusMappingService()->getMapping($this->webhook->getSqState());
         $this->getShopOrderService()->updateStatus($this->webhook, $shopStatus);
@@ -144,7 +144,7 @@ public function unserialize($serialized): void
      *
      * @return OrderStatusSettingsService
      */
-    private function getOrderStatusMappingService(): OrderStatusSettingsService
+    protected function getOrderStatusMappingService(): OrderStatusSettingsService
     {
         return ServiceRegister::getService(OrderStatusSettingsService::class);
     }
@@ -154,7 +154,7 @@ private function getOrderStatusMappingService(): OrderStatusSettingsService
      *
      * @return ShopOrderService
      */
-    private function getShopOrderService(): ShopOrderService
+    protected function getShopOrderService(): ShopOrderService
     {
         return ServiceRegister::getService(ShopOrderService::class);
     }
diff --git a/src/BusinessLogic/WebhookAPI/Controller/WebhookController.php b/src/BusinessLogic/WebhookAPI/Controller/WebhookController.php
index 6ffe420..d4e51ec 100644
--- a/src/BusinessLogic/WebhookAPI/Controller/WebhookController.php
+++ b/src/BusinessLogic/WebhookAPI/Controller/WebhookController.php
@@ -19,12 +19,12 @@ class WebhookController
     /**
      * @var WebhookValidator
      */
-    private $validator;
+    protected $validator;
 
     /**
      * @var WebhookHandler
      */
-    private $handler;
+    protected $handler;
 
     /**
      * WebhookController constructor.
diff --git a/src/Infrastructure/AutoTest/AutoTestService.php b/src/Infrastructure/AutoTest/AutoTestService.php
index ef4be38..8922c5c 100644
--- a/src/Infrastructure/AutoTest/AutoTestService.php
+++ b/src/Infrastructure/AutoTest/AutoTestService.php
@@ -31,7 +31,7 @@ class AutoTestService
      *
      * @var Configuration
      */
-    private $configService;
+    protected $configService;
 
     /**
      * Starts the auto-test.
@@ -173,7 +173,7 @@ protected function logHttpOptions()
      *
      * @return Configuration Configuration service instance.
      */
-    private function getConfigService()
+    protected function getConfigService()
     {
         if ($this->configService === null) {
             $this->configService = ServiceRegister::getService(Configuration::CLASS_NAME);
diff --git a/src/Infrastructure/Http/AutoConfiguration.php b/src/Infrastructure/Http/AutoConfiguration.php
index 2d429a0..7a35a29 100644
--- a/src/Infrastructure/Http/AutoConfiguration.php
+++ b/src/Infrastructure/Http/AutoConfiguration.php
@@ -33,11 +33,11 @@ class AutoConfiguration
     /**
      * @var Configuration
      */
-    private $configService;
+    protected $configService;
     /**
      * @var HttpClient
      */
-    private $httpClient;
+    protected $httpClient;
 
     /**
      * AutoConfigurationController constructor.
diff --git a/src/Infrastructure/Http/CurlHttpClient.php b/src/Infrastructure/Http/CurlHttpClient.php
index 363ab08..67d9506 100644
--- a/src/Infrastructure/Http/CurlHttpClient.php
+++ b/src/Infrastructure/Http/CurlHttpClient.php
@@ -50,7 +50,7 @@ class CurlHttpClient extends HttpClient
      *
      * @var resource
      */
-    private $curlSession;
+    protected $curlSession;
 
     /**
      * Create and send request.
diff --git a/src/Infrastructure/Http/DTO/Options.php b/src/Infrastructure/Http/DTO/Options.php
index 513a04a..1ea15cc 100644
--- a/src/Infrastructure/Http/DTO/Options.php
+++ b/src/Infrastructure/Http/DTO/Options.php
@@ -16,13 +16,13 @@ class Options extends DataTransferObject
      *
      * @var string
      */
-    private $name;
+    protected $name;
     /**
      * Value of the option.
      *
      * @var string
      */
-    private $value;
+    protected $value;
 
     /**
      * Options constructor.
diff --git a/src/Infrastructure/Http/HttpClient.php b/src/Infrastructure/Http/HttpClient.php
index 0f62e5f..b6b1f85 100644
--- a/src/Infrastructure/Http/HttpClient.php
+++ b/src/Infrastructure/Http/HttpClient.php
@@ -65,13 +65,13 @@ abstract class HttpClient
      *
      * @var Configuration
      */
-    private $configService;
+    protected $configService;
     /**
      * An array of additional HTTP configuration options.
      *
      * @var array
      */
-    private $httpConfigurationOptions;
+    protected $httpConfigurationOptions;
 
     /**
      * Create and send request.
@@ -249,7 +249,7 @@ protected function getAdditionalOptions(string $domain): array
      *
      * @return bool TRUE if request was successful; otherwise, FALSE.
      */
-    private function isRequestSuccessful(
+    protected function isRequestSuccessful(
         string $method,
         string $url,
         ?array $headers = array(),
diff --git a/src/Infrastructure/Http/HttpResponse.php b/src/Infrastructure/Http/HttpResponse.php
index 0c3d0f6..b661671 100644
--- a/src/Infrastructure/Http/HttpResponse.php
+++ b/src/Infrastructure/Http/HttpResponse.php
@@ -18,19 +18,19 @@ class HttpResponse
      *
      * @var int
      */
-    private $status;
+    protected $status;
     /**
      * Response body.
      *
      * @var string
      */
-    private $body;
+    protected $body;
     /**
      * HTTP headers.
      *
      * @var array
      */
-    private $headers;
+    protected $headers;
 
     /**
      * HttpResponse constructor.
diff --git a/src/Infrastructure/Http/LoggingHttpclient.php b/src/Infrastructure/Http/LoggingHttpclient.php
index 2e88b7f..a3f7e4b 100644
--- a/src/Infrastructure/Http/LoggingHttpclient.php
+++ b/src/Infrastructure/Http/LoggingHttpclient.php
@@ -9,7 +9,7 @@ class LoggingHttpclient extends HttpClient
     /**
      * @var HttpClient
      */
-    private $client;
+    protected $client;
 
     /**
      * LoggingHttpclient constructor.
diff --git a/src/Infrastructure/Logger/LogContextData.php b/src/Infrastructure/Logger/LogContextData.php
index 8207609..14b8498 100644
--- a/src/Infrastructure/Logger/LogContextData.php
+++ b/src/Infrastructure/Logger/LogContextData.php
@@ -16,13 +16,13 @@ class LogContextData extends DataTransferObject
      *
      * @var string
      */
-    private $name;
+    protected $name;
     /**
      * Value of data.
      *
      * @var mixed
      */
-    private $value;
+    protected $value;
 
     /**
      * LogContextData constructor.
diff --git a/src/Infrastructure/Logger/Logger.php b/src/Infrastructure/Logger/Logger.php
index 31c2f5b..90c8f28 100644
--- a/src/Infrastructure/Logger/Logger.php
+++ b/src/Infrastructure/Logger/Logger.php
@@ -42,13 +42,13 @@ class Logger extends Singleton
      *
      * @var ShopLoggerAdapter
      */
-    private $shopLogger;
+    protected $shopLogger;
     /**
      * Time provider.
      *
      * @var TimeProvider
      */
-    private $timeProvider;
+    protected $timeProvider;
 
     /**
      * Logger constructor. Hidden.
@@ -117,7 +117,7 @@ public static function logDebug($message, $component = 'Core', array $context =
      * @param string $component Component for which to log message.
      * @param LogContextData[]|array $context Additional context data.
      */
-    private function logMessage($level, $message, $component, array $context = array())
+    protected function logMessage($level, $message, $component, array $context = array())
     {
         $config = LoggerConfiguration::getInstance();
         $logData = new LogData(
diff --git a/src/Infrastructure/Logger/LoggerConfiguration.php b/src/Infrastructure/Logger/LoggerConfiguration.php
index 107b939..15d6b74 100644
--- a/src/Infrastructure/Logger/LoggerConfiguration.php
+++ b/src/Infrastructure/Logger/LoggerConfiguration.php
@@ -33,25 +33,25 @@ class LoggerConfiguration extends Singleton
      *
      * @var boolean
      */
-    private $isDefaultLoggerEnabled;
+    protected $isDefaultLoggerEnabled;
     /**
      * Configuration service instance.
      *
      * @var Configuration
      */
-    private $shopConfiguration;
+    protected $shopConfiguration;
     /**
      * Minimum log level set.
      *
      * @var int
      */
-    private $minLogLevel;
+    protected $minLogLevel;
     /**
      * Integration name.
      *
      * @var string
      */
-    private $integrationName;
+    protected $integrationName;
 
     /**
      * Set default logger status (turning on/off).
@@ -157,7 +157,7 @@ public function getIntegrationName()
      *
      * @return Configuration Instance of configuration service.
      */
-    private function getShopConfiguration()
+    protected function getShopConfiguration()
     {
         if ($this->shopConfiguration === null) {
             $this->shopConfiguration = ServiceRegister::getService(Configuration::CLASS_NAME);
diff --git a/src/Infrastructure/ORM/Configuration/EntityConfiguration.php b/src/Infrastructure/ORM/Configuration/EntityConfiguration.php
index c526f2c..1f6f140 100644
--- a/src/Infrastructure/ORM/Configuration/EntityConfiguration.php
+++ b/src/Infrastructure/ORM/Configuration/EntityConfiguration.php
@@ -14,13 +14,13 @@ class EntityConfiguration
      *
      * @var IndexMap
      */
-    private $indexMap;
+    protected $indexMap;
     /**
      * Entity type.
      *
      * @var string
      */
-    private $type;
+    protected $type;
 
     /**
      * EntityConfiguration constructor.
diff --git a/src/Infrastructure/ORM/Configuration/Index.php b/src/Infrastructure/ORM/Configuration/Index.php
index 4ec9e5d..1894d77 100644
--- a/src/Infrastructure/ORM/Configuration/Index.php
+++ b/src/Infrastructure/ORM/Configuration/Index.php
@@ -36,13 +36,13 @@ class Index
      *
      * @var string
      */
-    private $type;
+    protected $type;
     /**
      * Property name (column name).
      *
      * @var string
      */
-    private $property;
+    protected $property;
 
     /**
      * Index constructor.
diff --git a/src/Infrastructure/ORM/Configuration/IndexMap.php b/src/Infrastructure/ORM/Configuration/IndexMap.php
index 016f8a9..488c91b 100644
--- a/src/Infrastructure/ORM/Configuration/IndexMap.php
+++ b/src/Infrastructure/ORM/Configuration/IndexMap.php
@@ -14,7 +14,7 @@ class IndexMap
      *
      * @var Index[]
      */
-    private $indexes = array();
+    protected $indexes = array();
 
     /**
      * Adds boolean index.
diff --git a/src/Infrastructure/ORM/IntermediateObject.php b/src/Infrastructure/ORM/IntermediateObject.php
index 967489d..457a72b 100644
--- a/src/Infrastructure/ORM/IntermediateObject.php
+++ b/src/Infrastructure/ORM/IntermediateObject.php
@@ -12,35 +12,35 @@ class IntermediateObject
     /**
      * @var string
      */
-    private $index1;
+    protected $index1;
     /**
      * @var string
      */
-    private $index2;
+    protected $index2;
     /**
      * @var string
      */
-    private $index3;
+    protected $index3;
     /**
      * @var string
      */
-    private $index4;
+    protected $index4;
     /**
      * @var string
      */
-    private $index5;
+    protected $index5;
     /**
      * @var string
      */
-    private $index6;
+    protected $index6;
     /**
      * @var string
      */
-    private $data;
+    protected $data;
     /**
      * @var array
      */
-    private $otherIndexes = array();
+    protected $otherIndexes = array();
 
     /**
      * @return string
diff --git a/src/Infrastructure/ORM/QueryFilter/QueryCondition.php b/src/Infrastructure/ORM/QueryFilter/QueryCondition.php
index e41aa7f..aedd7d5 100644
--- a/src/Infrastructure/ORM/QueryFilter/QueryCondition.php
+++ b/src/Infrastructure/ORM/QueryFilter/QueryCondition.php
@@ -14,23 +14,23 @@ class QueryCondition
     /**
      * @var string - AND | OR
      */
-    private $chainOperator;
+    protected $chainOperator;
     /**
      * @var string
      */
-    private $column;
+    protected $column;
     /**
      * @var string
      */
-    private $operator;
+    protected $operator;
     /**
      * @var mixed
      */
-    private $value;
+    protected $value;
     /**
      * @var string
      */
-    private $valueType;
+    protected $valueType;
 
     /**
      * Condition constructor.
diff --git a/src/Infrastructure/ORM/QueryFilter/QueryFilter.php b/src/Infrastructure/ORM/QueryFilter/QueryFilter.php
index 28e3052..977af00 100644
--- a/src/Infrastructure/ORM/QueryFilter/QueryFilter.php
+++ b/src/Infrastructure/ORM/QueryFilter/QueryFilter.php
@@ -21,31 +21,31 @@ class QueryFilter
      *
      * @var QueryCondition[]
      */
-    private $conditions = array();
+    protected $conditions = array();
     /**
      * Order by column name.
      *
      * @var string
      */
-    private $orderByColumn;
+    protected $orderByColumn;
     /**
      * Order direction.
      *
      * @var string
      */
-    private $orderDirection = 'ASC';
+    protected $orderDirection = 'ASC';
     /**
      * Limit for select.
      *
      * @var int
      */
-    private $limit;
+    protected $limit;
     /**
      * Offset for select.
      *
      * @var int
      */
-    private $offset;
+    protected $offset;
 
     /**
      * Gets limit for select.
@@ -198,7 +198,7 @@ public function orWhere($column, $operator, $value = null)
      *
      * @throws QueryFilterInvalidParamException
      */
-    private function validateConditionParameters($column, $operator, $value)
+    protected function validateConditionParameters($column, $operator, $value)
     {
         if (!is_string($column) || !is_string($operator)) {
             throw new QueryFilterInvalidParamException('Column and operator values must be string types');
diff --git a/src/Infrastructure/ORM/Utility/EntityTranslator.php b/src/Infrastructure/ORM/Utility/EntityTranslator.php
index 00ad69d..cff263f 100644
--- a/src/Infrastructure/ORM/Utility/EntityTranslator.php
+++ b/src/Infrastructure/ORM/Utility/EntityTranslator.php
@@ -16,7 +16,7 @@ class EntityTranslator
     /**
      * @var string
      */
-    private $entityClass;
+    protected $entityClass;
 
     /**
      * @param string $entityClass
@@ -62,7 +62,7 @@ public function translate(array $intermediateObjects)
      * @return Entity
      * @throws EntityClassException
      */
-    private function translateOne(IntermediateObject $intermediateObject)
+    protected function translateOne(IntermediateObject $intermediateObject)
     {
         $data = json_decode($intermediateObject->getData(), true);
 
diff --git a/src/Infrastructure/ServiceRegister.php b/src/Infrastructure/ServiceRegister.php
index 57d69f0..573859d 100644
--- a/src/Infrastructure/ServiceRegister.php
+++ b/src/Infrastructure/ServiceRegister.php
@@ -17,7 +17,7 @@ class ServiceRegister
      *
      * @var ServiceRegister
      */
-    private static $instance;
+    protected static $instance;
     /**
      * Array of registered services.
      *
diff --git a/src/Infrastructure/TaskExecution/AsyncBatchStarter.php b/src/Infrastructure/TaskExecution/AsyncBatchStarter.php
index f3051ee..f16082d 100644
--- a/src/Infrastructure/TaskExecution/AsyncBatchStarter.php
+++ b/src/Infrastructure/TaskExecution/AsyncBatchStarter.php
@@ -15,31 +15,31 @@ class AsyncBatchStarter implements Runnable
      *
      * @var int
      */
-    private $batchSize;
+    protected $batchSize;
     /**
      * List of sub-batches.
      *
      * @var AsyncBatchStarter[]
      */
-    private $subBatches = array();
+    protected $subBatches = array();
     /**
      * List of runners.
      *
      * @var Runnable[]
      */
-    private $runners = array();
+    protected $runners = array();
     /**
      * Current add index.
      *
      * @var int
      */
-    private $addIndex = 0;
+    protected $addIndex = 0;
     /**
      * Instance of async process starter.
      *
      * @var AsyncProcessService
      */
-    private $asyncProcessStarter;
+    protected $asyncProcessStarter;
 
     /**
      * @inheritDoc
diff --git a/src/Infrastructure/TaskExecution/AsyncProcessStarterService.php b/src/Infrastructure/TaskExecution/AsyncProcessStarterService.php
index 2161c37..31ddb84 100644
--- a/src/Infrastructure/TaskExecution/AsyncProcessStarterService.php
+++ b/src/Infrastructure/TaskExecution/AsyncProcessStarterService.php
@@ -36,25 +36,25 @@ class AsyncProcessStarterService extends Singleton implements AsyncProcessServic
      *
      * @var Configuration
      */
-    private $configuration;
+    protected $configuration;
     /**
      * Process entity repository.
      *
      * @var RepositoryInterface
      */
-    private $processRepository;
+    protected $processRepository;
     /**
      * GUID provider instance.
      *
      * @var GuidProvider
      */
-    private $guidProvider;
+    protected $guidProvider;
     /**
      * HTTP client.
      *
      * @var HttpClient
      */
-    private $httpClient;
+    protected $httpClient;
 
     /**
      * AsyncProcessStarterService constructor.
@@ -119,7 +119,7 @@ public function runProcess($guid)
      *
      * @throws ProcessStarterSaveException
      */
-    private function saveGuidAndRunner($guid, Runnable $runner)
+    protected function saveGuidAndRunner($guid, Runnable $runner)
     {
         try {
             $process = new Process();
@@ -140,7 +140,7 @@ private function saveGuidAndRunner($guid, Runnable $runner)
      *
      * @throws HttpRequestException
      */
-    private function startRunnerAsynchronously($guid)
+    protected function startRunnerAsynchronously($guid)
     {
         try {
             $this->httpClient->requestAsync(
diff --git a/src/Infrastructure/TaskExecution/Composite/ExecutionDetails.php b/src/Infrastructure/TaskExecution/Composite/ExecutionDetails.php
index 473f4a0..73d9453 100644
--- a/src/Infrastructure/TaskExecution/Composite/ExecutionDetails.php
+++ b/src/Infrastructure/TaskExecution/Composite/ExecutionDetails.php
@@ -10,7 +10,7 @@
  *
  * @package SeQura\Core\Infrastructure\TaskExecution\Composite
  *
- * @access private
+ * @access protected
  */
 class ExecutionDetails implements Serializable
 {
@@ -19,19 +19,19 @@ class ExecutionDetails implements Serializable
      *
      * @var int
      */
-    private $executionId;
+    protected $executionId;
     /**
      * Positive (grater than zero) integer. Higher number implies higher impact of subtask's progress on total progress.
      *
      * @var int
      */
-    private $weight;
+    protected $weight;
     /**
      * Task progress.
      *
      * @var float
      */
-    private $progress;
+    protected $progress;
 
     /**
      * ExecutionDetails constructor.
diff --git a/src/Infrastructure/TaskExecution/Composite/Orchestrator.php b/src/Infrastructure/TaskExecution/Composite/Orchestrator.php
index 6821e30..928520f 100644
--- a/src/Infrastructure/TaskExecution/Composite/Orchestrator.php
+++ b/src/Infrastructure/TaskExecution/Composite/Orchestrator.php
@@ -191,7 +191,7 @@ protected function createSubJob(Task $task, $weight = 1)
      *
      * @return float
      */
-    private function calculateProgress()
+    protected function calculateProgress()
     {
         $totalWeight = 0;
         $totalProgress = 0;
@@ -219,7 +219,7 @@ protected function getSubJobQueueName()
      *
      * @return QueueService
      */
-    private function getQueueService()
+    protected function getQueueService()
     {
         return ServiceRegister::getService(QueueService::CLASS_NAME);
     }
@@ -229,7 +229,7 @@ private function getQueueService()
      *
      * @return string
      */
-    private function getContext()
+    protected function getContext()
     {
         /**
          * @var ConfigurationManager $configManager
@@ -246,7 +246,7 @@ private function getContext()
      *
      * @return ExecutionDetails | false
      */
-    private function getSubJob($executionId)
+    protected function getSubJob($executionId)
     {
         return current(array_filter(
             $this->taskList,
@@ -259,7 +259,7 @@ static function (ExecutionDetails $d) use ($executionId) {
     /**
      * Aborts incomplete sub-jobs.
      */
-    private function abortSubJobs()
+    protected function abortSubJobs()
     {
         $ids = [];
         foreach ($this->taskList as $task) {
@@ -278,7 +278,7 @@ private function abortSubJobs()
     /**
      * Starts sub-jobs.
      */
-    private function startSubJobs()
+    protected function startSubJobs()
     {
         $ids = array_map(static function (ExecutionDetails $d) {
             return $d->getExecutionId();
diff --git a/src/Infrastructure/TaskExecution/CompositeTask.php b/src/Infrastructure/TaskExecution/CompositeTask.php
index 54eb25e..5065583 100644
--- a/src/Infrastructure/TaskExecution/CompositeTask.php
+++ b/src/Infrastructure/TaskExecution/CompositeTask.php
@@ -40,7 +40,7 @@ abstract class CompositeTask extends Task
      *
      * @var int
      */
-    private $initialProgress;
+    protected $initialProgress;
 
     /**
      * CompositeTask constructor.
@@ -355,7 +355,7 @@ protected function isProcessCompleted()
      *
      * @param Task $task A Task for which to register listener.
      */
-    private function registerReportAliveEvent(Task $task)
+    protected function registerReportAliveEvent(Task $task)
     {
         $self = $this;
 
@@ -372,7 +372,7 @@ function () use ($self) {
      *
      * @param string $taskKey A Task for which to register listener.
      */
-    private function registerReportProgressEvent($taskKey)
+    protected function registerReportProgressEvent($taskKey)
     {
         $self = $this;
         $task = $this->tasks[$taskKey];
diff --git a/src/Infrastructure/TaskExecution/Events/BeforeQueueStatusChangeEvent.php b/src/Infrastructure/TaskExecution/Events/BeforeQueueStatusChangeEvent.php
index 65b125f..c08a2f5 100644
--- a/src/Infrastructure/TaskExecution/Events/BeforeQueueStatusChangeEvent.php
+++ b/src/Infrastructure/TaskExecution/Events/BeforeQueueStatusChangeEvent.php
@@ -21,13 +21,13 @@ class BeforeQueueStatusChangeEvent extends Event
      *
      * @var QueueItem
      */
-    private $queueItem;
+    protected $queueItem;
     /**
      * Previous state of queue item.
      *
      * @var string
      */
-    private $previousState;
+    protected $previousState;
 
     /**
      * TaskProgressEvent constructor.
diff --git a/src/Infrastructure/TaskExecution/Events/QueueStatusChangedEvent.php b/src/Infrastructure/TaskExecution/Events/QueueStatusChangedEvent.php
index ea3056c..e1f821e 100644
--- a/src/Infrastructure/TaskExecution/Events/QueueStatusChangedEvent.php
+++ b/src/Infrastructure/TaskExecution/Events/QueueStatusChangedEvent.php
@@ -21,13 +21,13 @@ class QueueStatusChangedEvent extends Event
      *
      * @var QueueItem
      */
-    private $queueItem;
+    protected $queueItem;
     /**
      * Previous state of queue item.
      *
      * @var string
      */
-    private $previousState;
+    protected $previousState;
 
     /**
      * TaskProgressEvent constructor.
diff --git a/src/Infrastructure/TaskExecution/QueueItem.php b/src/Infrastructure/TaskExecution/QueueItem.php
index e33dea1..e84c135 100644
--- a/src/Infrastructure/TaskExecution/QueueItem.php
+++ b/src/Infrastructure/TaskExecution/QueueItem.php
@@ -193,7 +193,7 @@ class QueueItem extends Entity
      *
      * @var TimeProvider
      */
-    private $timeProvider;
+    protected $timeProvider;
 
     /**
      * QueueItem constructor.
@@ -867,7 +867,7 @@ protected function getDateTimeFromTimestamp($timestamp)
     /**
      * Attach Task event handlers.
      */
-    private function attachTaskEventHandlers()
+    protected function attachTaskEventHandlers()
     {
         if ($this->task === null) {
             return;
diff --git a/src/Infrastructure/TaskExecution/QueueItemStarter.php b/src/Infrastructure/TaskExecution/QueueItemStarter.php
index 29d4d58..95ffbf0 100644
--- a/src/Infrastructure/TaskExecution/QueueItemStarter.php
+++ b/src/Infrastructure/TaskExecution/QueueItemStarter.php
@@ -25,19 +25,19 @@ class QueueItemStarter implements Runnable
      *
      * @var int
      */
-    private $queueItemId;
+    protected $queueItemId;
     /**
      * Service instance.
      *
      * @var QueueService
      */
-    private $queueService;
+    protected $queueService;
     /**
      * Service instance.
      *
      * @var ConfigurationManager
      */
-    private $configurationManager;
+    protected $configurationManager;
 
     /**
      * QueueItemStarter constructor.
@@ -173,7 +173,7 @@ public function getQueueItemId()
      *
      * @return QueueItem|null Queue item if found; otherwise, null.
      */
-    private function fetchItem()
+    protected function fetchItem()
     {
         try {
             $queueItem = $this->getQueueService()->find($this->queueItemId);
@@ -189,7 +189,7 @@ private function fetchItem()
      *
      * @return QueueService Service instance.
      */
-    private function getQueueService()
+    protected function getQueueService()
     {
         if ($this->queueService === null) {
             $this->queueService = ServiceRegister::getService(QueueService::CLASS_NAME);
@@ -203,7 +203,7 @@ private function getQueueService()
      *
      * @return ConfigurationManager Service instance.
      */
-    private function getConfigManager()
+    protected function getConfigManager()
     {
         if ($this->configurationManager === null) {
             $this->configurationManager = ServiceRegister::getService(ConfigurationManager::CLASS_NAME);
diff --git a/src/Infrastructure/TaskExecution/QueueService.php b/src/Infrastructure/TaskExecution/QueueService.php
index 75ec211..0d50c4d 100644
--- a/src/Infrastructure/TaskExecution/QueueService.php
+++ b/src/Infrastructure/TaskExecution/QueueService.php
@@ -50,25 +50,25 @@ class QueueService
      *
      * @var RepositoryRegistry
      */
-    private $storage;
+    protected $storage;
     /**
      * Time provider instance.
      *
      * @var TimeProvider
      */
-    private $timeProvider;
+    protected $timeProvider;
     /**
      * Task runner wakeup instance.
      *
      * @var TaskRunnerWakeup
      */
-    private $taskRunnerWakeup;
+    protected $taskRunnerWakeup;
     /**
      * Configuration service instance.
      *
      * @var Configuration
      */
-    private $configService;
+    protected $configService;
 
     /**
      * Updates status of a group of tasks.
@@ -534,7 +534,7 @@ public function fireStateTransitionEvent(Event $event)
      *
      * @throws QueueStorageUnavailableException
      */
-    private function save(
+    protected function save(
         QueueItem $queueItem,
         array $additionalWhere = array(),
         $reportStateChange = false,
@@ -564,7 +564,7 @@ private function save(
      * @param QueueItem $queueItem Queue item with is about to change status.
      * @param string $previousState Previous state. MUST be one of the states defined as constants in @see QueueItem.
      */
-    private function reportBeforeStatusChange(QueueItem $queueItem, $previousState)
+    protected function reportBeforeStatusChange(QueueItem $queueItem, $previousState)
     {
         /**
          * @var EventBus $eventBus
@@ -579,7 +579,7 @@ private function reportBeforeStatusChange(QueueItem $queueItem, $previousState)
      * @param QueueItem $queueItem Queue item with changed status.
      * @param string $previousState Previous state. MUST be one of the states defined as constants in @see QueueItem.
      */
-    private function reportStatusChange(QueueItem $queueItem, $previousState)
+    protected function reportStatusChange(QueueItem $queueItem, $previousState)
     {
         /**
          * @var EventBus $eventBus
@@ -595,7 +595,7 @@ private function reportStatusChange(QueueItem $queueItem, $previousState)
      *
      * @return QueueItemRepository Task storage instance.
      */
-    private function getStorage()
+    protected function getStorage()
     {
         if ($this->storage === null) {
             /**
@@ -612,7 +612,7 @@ private function getStorage()
      *
      * @return TimeProvider Time provider instance.
      */
-    private function getTimeProvider()
+    protected function getTimeProvider()
     {
         if ($this->timeProvider === null) {
             $this->timeProvider = ServiceRegister::getService(TimeProvider::CLASS_NAME);
@@ -626,7 +626,7 @@ private function getTimeProvider()
      *
      * @return TaskRunnerWakeup Task runner wakeup instance.
      */
-    private function getTaskRunnerWakeup()
+    protected function getTaskRunnerWakeup()
     {
         if ($this->taskRunnerWakeup === null) {
             $this->taskRunnerWakeup = ServiceRegister::getService(TaskRunnerWakeup::CLASS_NAME);
@@ -640,7 +640,7 @@ private function getTaskRunnerWakeup()
      *
      * @return Configuration Configuration service instance.
      */
-    private function getConfigService()
+    protected function getConfigService()
     {
         if ($this->configService === null) {
             $this->configService = ServiceRegister::getService(Configuration::CLASS_NAME);
@@ -657,7 +657,7 @@ private function getConfigService()
      *
      * @throws BadMethodCallException
      */
-    private function throwIllegalTransitionException($fromStatus, $toStatus)
+    protected function throwIllegalTransitionException($fromStatus, $toStatus)
     {
         throw new BadMethodCallException(
             sprintf(
@@ -673,7 +673,7 @@ private function throwIllegalTransitionException($fromStatus, $toStatus)
      *
      * @return int Number of retries.
      */
-    private function getMaxRetries()
+    protected function getMaxRetries()
     {
         $configurationValue = $this->getConfigService()->getMaxTaskExecutionRetries();
 
@@ -691,7 +691,7 @@ private function getMaxRetries()
      *
      * @return QueueItem
      */
-    private function instantiate(Task $task, $queueName, $context, $priority, $parent = null)
+    protected function instantiate(Task $task, $queueName, $context, $priority, $parent = null)
     {
         $queueItem = new QueueItem($task);
         $queueItem->setQueueName($queueName);
diff --git a/src/Infrastructure/TaskExecution/RunnerStatusStorage.php b/src/Infrastructure/TaskExecution/RunnerStatusStorage.php
index 569efd3..1c8d31c 100644
--- a/src/Infrastructure/TaskExecution/RunnerStatusStorage.php
+++ b/src/Infrastructure/TaskExecution/RunnerStatusStorage.php
@@ -20,7 +20,7 @@ class RunnerStatusStorage implements TaskRunnerStatusStorage
      *
      * @var Configuration
      */
-    private $configService;
+    protected $configService;
 
     /**
      * Returns task runner status.
@@ -63,7 +63,7 @@ public function setStatus(TaskRunnerStatus $status)
      * @throws TaskRunnerStatusChangeException
      * @throws TaskRunnerStatusStorageUnavailableException
      */
-    private function checkTaskRunnerStatusChangeAvailability(TaskRunnerStatus $status)
+    protected function checkTaskRunnerStatusChangeAvailability(TaskRunnerStatus $status)
     {
         $currentGuid = $this->getStatus()->getGuid();
         $guidForUpdate = $status->getGuid();
@@ -80,7 +80,7 @@ private function checkTaskRunnerStatusChangeAvailability(TaskRunnerStatus $statu
      *
      * @see Configuration service.
      */
-    private function getConfigService()
+    protected function getConfigService()
     {
         if ($this->configService === null) {
             $this->configService = ServiceRegister::getService(Configuration::CLASS_NAME);
diff --git a/src/Infrastructure/TaskExecution/Task.php b/src/Infrastructure/TaskExecution/Task.php
index f55b058..efbec24 100644
--- a/src/Infrastructure/TaskExecution/Task.php
+++ b/src/Infrastructure/TaskExecution/Task.php
@@ -36,19 +36,19 @@ abstract class Task extends EventEmitter implements Serializable
      *
      * @var DateTime
      */
-    private $lastAliveSignalTime;
+    protected $lastAliveSignalTime;
     /**
      * An instance of Configuration service.
      *
      * @var Configuration
      */
-    private $configService;
+    protected $configService;
     /**
      * Task execution id.
      *
      * @var string
      */
-    private $executionId;
+    protected $executionId;
 
     /**
      * Runs task logic.
@@ -247,7 +247,7 @@ public function onAbort()
      *
      * @return int Base points representation of percentage.
      */
-    private function percentToBasePoints($percentValue)
+    protected function percentToBasePoints($percentValue)
     {
         return (int)round($percentValue * 100, 2);
     }
diff --git a/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportAlive.php b/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportAlive.php
index 51f36c7..27dad0c 100644
--- a/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportAlive.php
+++ b/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportAlive.php
@@ -44,7 +44,7 @@ public static function handle(QueueItem $queueItem)
      *
      * @return QueueService
      */
-    private static function getQueue()
+    protected static function getQueue()
     {
         return ServiceRegister::getService(QueueService::CLASS_NAME);
     }
diff --git a/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportProgress.php b/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportProgress.php
index e2de0f1..88123a3 100644
--- a/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportProgress.php
+++ b/src/Infrastructure/TaskExecution/TaskEvents/Listeners/OnReportProgress.php
@@ -56,7 +56,7 @@ public static function handle(QueueItem $queueItem, $progressBasePoints)
      *
      * @return QueueService
      */
-    private static function getQueueService()
+    protected static function getQueueService()
     {
         return ServiceRegister::getService(QueueService::CLASS_NAME);
     }
diff --git a/src/Infrastructure/TaskExecution/TaskEvents/TaskProgressEvent.php b/src/Infrastructure/TaskExecution/TaskEvents/TaskProgressEvent.php
index e038fa7..69d836f 100644
--- a/src/Infrastructure/TaskExecution/TaskEvents/TaskProgressEvent.php
+++ b/src/Infrastructure/TaskExecution/TaskEvents/TaskProgressEvent.php
@@ -21,7 +21,7 @@ class TaskProgressEvent extends Event
      *
      * @var int
      */
-    private $progressPercentBasePoints;
+    protected $progressPercentBasePoints;
 
     /**
      * TaskProgressEvent constructor.
diff --git a/src/Infrastructure/TaskExecution/TaskRunner.php b/src/Infrastructure/TaskExecution/TaskRunner.php
index b5f2625..4810c21 100644
--- a/src/Infrastructure/TaskExecution/TaskRunner.php
+++ b/src/Infrastructure/TaskExecution/TaskRunner.php
@@ -46,49 +46,49 @@ class TaskRunner
      *
      * @var QueueService
      */
-    private $queueService;
+    protected $queueService;
     /**
      * Service.
      *
      * @var TaskRunnerStatusStorage
      */
-    private $runnerStorage;
+    protected $runnerStorage;
     /**
      * Service.
      *
      * @var Configuration
      */
-    private $configurationService;
+    protected $configurationService;
     /**
      * Service.
      *
      * @var TimeProvider
      */
-    private $timeProvider;
+    protected $timeProvider;
     /**
      * Service.
      *
      * @var TaskRunnerWakeup
      */
-    private $taskWakeup;
+    protected $taskWakeup;
     /**
      * Configuration manager.
      *
      * @var ConfigurationManager Configuration manager instance.
      */
-    private $configurationManager;
+    protected $configurationManager;
     /**
      * Defines when was the task runner alive since time step last updated at.
      *
      * @var int
      */
-    private $aliveSinceUpdatedAt = 0;
+    protected $aliveSinceUpdatedAt = 0;
     /**
      * Sleep time in seconds with microsecond precision.
      *
      * @var float
      */
-    private $batchSleepTime = 0.0;
+    protected $batchSleepTime = 0.0;
 
     /**
      * Sets task runner guid.
@@ -143,7 +143,7 @@ public function run()
      * @throws QueueStorageUnavailableException
      * @throws TaskRunnerStatusStorageUnavailableException
      */
-    private function failOrRequeueExpiredTasks()
+    protected function failOrRequeueExpiredTasks()
     {
         $this->logDebug(array('Message' => 'Task runner: expired tasks cleanup started.'));
 
@@ -185,7 +185,7 @@ private function failOrRequeueExpiredTasks()
      * @throws QueueItemDeserializationException
      * @throws QueueStorageUnavailableException
      */
-    private function failOrRequeueExpiredTask(QueueItem $item)
+    protected function failOrRequeueExpiredTask(QueueItem $item)
     {
         if (!$this->isItemExpired($item)) {
             return;
@@ -218,7 +218,7 @@ private function failOrRequeueExpiredTask(QueueItem $item)
      * @throws QueueItemDeserializationException
      * @throws TaskRunnerStatusStorageUnavailableException
      */
-    private function startOldestQueuedItems()
+    protected function startOldestQueuedItems()
     {
         $this->keepAlive();
 
@@ -283,7 +283,7 @@ private function startOldestQueuedItems()
      * @throws TaskRunnerStatusChangeException
      * @throws TaskRunnerStatusStorageUnavailableException
      */
-    private function wakeup()
+    protected function wakeup()
     {
         $this->logDebug(array('Message' => 'Task runner: starting self deactivation.'));
 
@@ -303,7 +303,7 @@ private function wakeup()
      *
      * @throws TaskRunnerStatusStorageUnavailableException
      */
-    private function keepAlive()
+    protected function keepAlive()
     {
         $currentTime = $this->getTimeProvider()->getCurrentLocalTime()->getTimestamp();
         if (($currentTime - $this->aliveSinceUpdatedAt) < self::TASK_RUNNER_KEEP_ALIVE_PERIOD) {
@@ -321,7 +321,7 @@ private function keepAlive()
      *
      * @throws TaskRunnerStatusStorageUnavailableException
      */
-    private function isCurrentRunnerAlive()
+    protected function isCurrentRunnerAlive()
     {
         $runnerStatus = $this->getRunnerStorage()->getStatus();
         $runnerExpired = $runnerStatus->isExpired();
@@ -347,7 +347,7 @@ private function isCurrentRunnerAlive()
      *
      * @throws QueueItemDeserializationException
      */
-    private function isItemExpired(QueueItem $item)
+    protected function isItemExpired(QueueItem $item)
     {
         $currentTimestamp = $this->getTimeProvider()->getCurrentLocalTime()->getTimestamp();
         $maxTaskInactivityPeriod = $item->getTask()->getMaxInactivityPeriod();
@@ -364,7 +364,7 @@ private function isItemExpired(QueueItem $item)
      *
      * @throws QueueItemDeserializationException
      */
-    private function getItemDescription(QueueItem $item)
+    protected function getItemDescription(QueueItem $item)
     {
         return "{$item->getId()}({$item->getTaskType()})";
     }
@@ -374,7 +374,7 @@ private function getItemDescription(QueueItem $item)
      *
      * @see QueueService service instance.
      */
-    private function getQueue()
+    protected function getQueue()
     {
         if ($this->queueService === null) {
             $this->queueService = ServiceRegister::getService(QueueService::CLASS_NAME);
@@ -388,7 +388,7 @@ private function getQueue()
      *
      * @see TaskRunnerStatusStorageInterface service instance.
      */
-    private function getRunnerStorage()
+    protected function getRunnerStorage()
     {
         if ($this->runnerStorage === null) {
             $this->runnerStorage = ServiceRegister::getService(TaskRunnerStatusStorage::CLASS_NAME);
@@ -416,7 +416,7 @@ public function getConfigurationManager()
      *
      * @see Configuration service instance.
      */
-    private function getConfigurationService()
+    protected function getConfigurationService()
     {
         if ($this->configurationService === null) {
             $this->configurationService = ServiceRegister::getService(Configuration::CLASS_NAME);
@@ -430,7 +430,7 @@ private function getConfigurationService()
      *
      * @see TimeProvider instance.
      */
-    private function getTimeProvider()
+    protected function getTimeProvider()
     {
         if ($this->timeProvider === null) {
             $this->timeProvider = ServiceRegister::getService(TimeProvider::CLASS_NAME);
@@ -444,7 +444,7 @@ private function getTimeProvider()
      *
      * @see TaskRunnerWakeupInterface service instance.
      */
-    private function getTaskWakeup()
+    protected function getTaskWakeup()
     {
         if ($this->taskWakeup === null) {
             $this->taskWakeup = ServiceRegister::getService(TaskRunnerWakeup::CLASS_NAME);
@@ -458,7 +458,7 @@ private function getTaskWakeup()
      *
      * @return int Wakeup delay in seconds.
      */
-    private function getWakeupDelay()
+    protected function getWakeupDelay()
     {
         $configurationValue = $this->getConfigurationService()->getTaskRunnerWakeupDelay();
 
@@ -475,7 +475,7 @@ private function getWakeupDelay()
      *
      * @throws QueueItemDeserializationException
      */
-    private function logMessageFor(QueueItem $queueItem, $message)
+    protected function logMessageFor(QueueItem $queueItem, $message)
     {
         $this->logDebug(
             array(
@@ -495,7 +495,7 @@ private function logMessageFor(QueueItem $queueItem, $message)
      *
      * @param array $debugContent Array of debug content for logging.
      */
-    private function logDebug(array $debugContent)
+    protected function logDebug(array $debugContent)
     {
         $debugContent['RunnerGuid'] = $this->guid;
         Logger::logDebug($debugContent['Message'], 'Core', $debugContent);
@@ -506,7 +506,7 @@ private function logDebug(array $debugContent)
      *
      * @param array $debugContent Array of debug content for logging.
      */
-    private function logWarning(array $debugContent)
+    protected function logWarning(array $debugContent)
     {
         $debugContent['RunnerGuid'] = $this->guid;
         Logger::logWarning($debugContent['Message'], 'Core', $debugContent);
diff --git a/src/Infrastructure/TaskExecution/TaskRunnerStarter.php b/src/Infrastructure/TaskExecution/TaskRunnerStarter.php
index a9c438e..36e8d1e 100644
--- a/src/Infrastructure/TaskExecution/TaskRunnerStarter.php
+++ b/src/Infrastructure/TaskExecution/TaskRunnerStarter.php
@@ -27,25 +27,25 @@ class TaskRunnerStarter implements Runnable
      *
      * @var string
      */
-    private $guid;
+    protected $guid;
     /**
      * Instance of task runner status storage.
      *
      * @var TaskRunnerStatusStorage
      */
-    private $runnerStatusStorage;
+    protected $runnerStatusStorage;
     /**
      * Instance of task runner.
      *
      * @var TaskRunner
      */
-    private $taskRunner;
+    protected $taskRunner;
     /**
      * Instance of task runner wakeup service.
      *
      * @var TaskRunnerWakeup
      */
-    private $taskWakeup;
+    protected $taskWakeup;
 
     /**
      * TaskRunnerStarter constructor.
@@ -173,7 +173,7 @@ public function run()
      * @throws TaskRunnerRunException
      * @throws TaskRunnerStatusStorageUnavailableException
      */
-    private function doRun()
+    protected function doRun()
     {
         $runnerStatus = $this->getRunnerStorage()->getStatus();
         if ($this->guid !== $runnerStatus->getGuid()) {
@@ -203,7 +203,7 @@ private function doRun()
      *
      * @return TaskRunnerStatusStorage Instance of runner status storage service.
      */
-    private function getRunnerStorage()
+    protected function getRunnerStorage()
     {
         if ($this->runnerStatusStorage === null) {
             $this->runnerStatusStorage = ServiceRegister::getService(TaskRunnerStatusStorage::CLASS_NAME);
@@ -217,7 +217,7 @@ private function getRunnerStorage()
      *
      * @return TaskRunner Instance of runner service.
      */
-    private function getTaskRunner()
+    protected function getTaskRunner()
     {
         if ($this->taskRunner === null) {
             $this->taskRunner = ServiceRegister::getService(TaskRunner::CLASS_NAME);
@@ -231,7 +231,7 @@ private function getTaskRunner()
      *
      * @return TaskRunnerWakeup Instance of runner wakeup service.
      */
-    private function getTaskWakeup()
+    protected function getTaskWakeup()
     {
         if ($this->taskWakeup === null) {
             $this->taskWakeup = ServiceRegister::getService(TaskRunnerWakeup::CLASS_NAME);
diff --git a/src/Infrastructure/TaskExecution/TaskRunnerStatus.php b/src/Infrastructure/TaskExecution/TaskRunnerStatus.php
index c5d61a3..635af59 100644
--- a/src/Infrastructure/TaskExecution/TaskRunnerStatus.php
+++ b/src/Infrastructure/TaskExecution/TaskRunnerStatus.php
@@ -22,25 +22,25 @@ class TaskRunnerStatus
      *
      * @var string
      */
-    private $guid;
+    protected $guid;
     /**
      * Timestamp since task runner is alive.
      *
      * @var int|null
      */
-    private $aliveSinceTimestamp;
+    protected $aliveSinceTimestamp;
     /**
      * Time provider service instance.
      *
      * @var TimeProvider
      */
-    private $timeProvider;
+    protected $timeProvider;
     /**
      * Configuration service instance.
      *
      * @var Configuration
      */
-    private $configService;
+    protected $configService;
 
     /**
      * TaskRunnerStatus constructor.
@@ -104,7 +104,7 @@ public function isExpired()
      *
      * @return int Max alive timestamp.
      */
-    private function getMaxAliveTimestamp()
+    protected function getMaxAliveTimestamp()
     {
         $configurationValue = $this->configService->getTaskRunnerMaxAliveTime();
 
diff --git a/src/Infrastructure/TaskExecution/TaskRunnerWakeupService.php b/src/Infrastructure/TaskExecution/TaskRunnerWakeupService.php
index ba6c65e..41cb897 100644
--- a/src/Infrastructure/TaskExecution/TaskRunnerWakeupService.php
+++ b/src/Infrastructure/TaskExecution/TaskRunnerWakeupService.php
@@ -27,25 +27,25 @@ class TaskRunnerWakeupService implements TaskRunnerWakeup
      *
      * @var AsyncProcessStarterService
      */
-    private $asyncProcessStarter;
+    protected $asyncProcessStarter;
     /**
      * Service instance.
      *
      * @var RunnerStatusStorage
      */
-    private $runnerStatusStorage;
+    protected $runnerStatusStorage;
     /**
      * Service instance.
      *
      * @var TimeProvider
      */
-    private $timeProvider;
+    protected $timeProvider;
     /**
      * Service instance.
      *
      * @var GuidProvider
      */
-    private $guidProvider;
+    protected $guidProvider;
 
     /**
      * Wakes up @see TaskRunner instance asynchronously if active instance is not already running.
@@ -92,7 +92,7 @@ public function wakeup()
      * @throws TaskRunnerStatusStorageUnavailableException
      * @throws HttpRequestException
      */
-    private function doWakeup()
+    protected function doWakeup()
     {
         $runnerStatus = $this->getRunnerStorage()->getStatus();
         $currentGuid = $runnerStatus->getGuid();
@@ -122,7 +122,7 @@ private function doWakeup()
      *
      * @see TaskRunnerStatusStorageInterface.
      */
-    private function getRunnerStorage()
+    protected function getRunnerStorage()
     {
         if ($this->runnerStatusStorage === null) {
             $this->runnerStatusStorage = ServiceRegister::getService(TaskRunnerStatusStorage::CLASS_NAME);
@@ -136,7 +136,7 @@ private function getRunnerStorage()
      *
      * @see GuidProvider.
      */
-    private function getGuidProvider()
+    protected function getGuidProvider()
     {
         if ($this->guidProvider === null) {
             $this->guidProvider = ServiceRegister::getService(GuidProvider::CLASS_NAME);
@@ -150,7 +150,7 @@ private function getGuidProvider()
      *
      * @see TimeProvider.
      */
-    private function getTimeProvider()
+    protected function getTimeProvider()
     {
         if ($this->timeProvider === null) {
             $this->timeProvider = ServiceRegister::getService(TimeProvider::CLASS_NAME);
@@ -164,7 +164,7 @@ private function getTimeProvider()
      *
      * @see AsyncProcessStarterService.
      */
-    private function getAsyncProcessStarter()
+    protected function getAsyncProcessStarter()
     {
         if ($this->asyncProcessStarter === null) {
             $this->asyncProcessStarter = ServiceRegister::getService(AsyncProcessService::CLASS_NAME);
diff --git a/src/Infrastructure/Utility/GuidProvider.php b/src/Infrastructure/Utility/GuidProvider.php
index 512d326..14a3b00 100644
--- a/src/Infrastructure/Utility/GuidProvider.php
+++ b/src/Infrastructure/Utility/GuidProvider.php
@@ -24,7 +24,7 @@ class GuidProvider
     /**
      * GuidProvider constructor.
      */
-    private function __construct()
+    protected function __construct()
     {
     }
 
diff --git a/src/Infrastructure/Utility/TimeProvider.php b/src/Infrastructure/Utility/TimeProvider.php
index 855cfc1..55c9dbb 100644
--- a/src/Infrastructure/Utility/TimeProvider.php
+++ b/src/Infrastructure/Utility/TimeProvider.php
@@ -25,7 +25,7 @@ class TimeProvider
     /**
      * TimeProvider constructor
      */
-    private function __construct()
+    protected function __construct()
     {
     }