1779 single subscription scenario fails (#1782)

Co-authored-by: Jack Tracey <41163455+jtracey93@users.noreply.github.com>

Author: arjenhuitema

docs/wiki/Whats-new.md

@@ -2,6 +2,7 @@
 
 - [Updates](#updates)
   - [🔃 Policy Refresh Q1 FY25](#-policy-refresh-q1-fy25)
+  - [October 2024](#october-2024)
   - [September 2024](#september-2024)
   - [August 2024](#august-2024)
   - [July 2024](#july-2024)
@@ -68,6 +69,12 @@ Here's what's changed in Enterprise Scale/Azure Landing Zones:
 
 >Note: there a known issue when re-deploying ALZ using the portal accelerator with CMK enabled. For details please see [Known Issues](ALZ-Known-Issues).
 
+### October 2024
+
+#### Tooling
+
+- Resolved a bug in the Portal Accelerator related to deploying the single platform subscription setup. Incorrect parameter settings led to the failure of AMBA, as it erroneously attempted to deploy to a standard management group structure instead of a single platform management group as needed.
+
 ### September 2024
 
 #### Documentation

eslzArm/eslzArm.json

@@ -2346,13 +2346,13 @@
                         "value": "[variables('mgmtGroups').platform]"
                     },
                     "IdentityManagementGroup": {
-                        "value": "[variables('mgmtGroups').identity]"
+                        "value": "[variables('mgmtGroups').platform]"
                     },
                     "managementManagementGroup": {
-                        "value": "[variables('mgmtGroups').management]"
+                        "value": "[variables('mgmtGroups').platform]"
                     },
                     "connectivityManagementGroup": {
-                        "value": "[variables('mgmtGroups').connectivity]"
+                        "value": "[variables('mgmtGroups').platform]"
                     },
                     "LandingZoneManagementGroup": {
                         "value": "[variables('mgmtGroups').lzs]"
@@ -2391,7 +2391,7 @@
                         "value": "[array(parameters('ambaAgEmailContact'))]"
                     },
                     "managementSubscriptionId": {
-                        "value": "[parameters('managementSubscriptionId')]"
+                        "value": "[parameters('singlePlatformSubscriptionId')]"
                     },
 		            "enableAMBALoadBalancing": {
                         "value": "[parameters('enableAMBALoadBalancing')]"
@@ -8861,7 +8861,7 @@
             }
         },
         /*
-            Note: ES Lite only: assign policy for identity to deny subnet without NSG 
+            Note: ES Lite only: assign policy for identity to deny subnet without NSG
         */
         {
             // Assigning deny subnet without nsg policy to identity management group if condition is true
@@ -8892,7 +8892,7 @@
             }
         },
         /*
-            Note: ES Lite only: assign policy to deny management ports from internet to platform MG 
+            Note: ES Lite only: assign policy to deny management ports from internet to platform MG
         */
         {
             // Assigning deny management ports from internet policy landing zones management group if condition is true