add error if user tries to access multi org without valid feature

Author: Christinarlong

src/sentry/integrations/github/integration.py

@@ -762,6 +762,7 @@ class GitHubInstallationError(StrEnum):
     USER_MISMATCH = "Authenticated user is not the same as who installed the app."
     MISSING_INTEGRATION = "Integration does not exist."
     INVALID_INSTALLATION = "User does not have access to given installation"
+    FEATURE_NOT_AVAILABLE = "Organization does not have access to this feature"
 
 
 def record_event(event: IntegrationPipelineViewType):
@@ -927,9 +928,18 @@ def dispatch(self, request: HttpRequest, pipeline: Pipeline) -> HttpResponseBase
             )
 
             if chosen_installation_id := request.GET.get("chosen_installation_id"):
-                if chosen_installation_id == "-1" or not has_scm_multi_org:
+
+                if chosen_installation_id == "-1":
                     return pipeline.next_step()
 
+                if not has_scm_multi_org:
+                    lifecycle.record_failure(GitHubInstallationError.FEATURE_NOT_AVAILABLE)
+                    return error(
+                        request,
+                        self.active_user_organization,
+                        error_short=GitHubInstallationError.FEATURE_NOT_AVAILABLE,
+                    )
+
                 # Verify that the given GH installation belongs to the person installing the pipeline
                 installation_ids = [
                     installation["installation_id"] for installation in installation_info