Merge pull request #310433 from dlepow/movesub

[APIM] Update FAQ for moving subs

Author: prmerger-automator[bot]

articles/api-management/api-management-faq.yml

@@ -5,7 +5,7 @@ metadata:
   author: dlepow
   ms.service: azure-api-management
   ms.topic: faq
-  ms.date: 09/30/2025
+  ms.date: 01/13/2026
   ms.author: danlep 
   ms.custom: engagement-fy23,fasttrack-edit,build-2025
 
@@ -51,7 +51,10 @@ sections:
       - question: |
           Can I move an API Management instance from one subscription to another?
         answer: |
-          Yes. To learn how, see [Move resources to a new resource group or subscription](../azure-resource-manager/management/move-resource-group-and-subscription.md).
+          Yes. To learn how, see [Move resources to a new resource group or subscription](../azure-resource-manager/management/move-resource-group-and-subscription.md). Certain features or resources can't be moved and should be disabled or removed before the move, including:
+
+          * System-assigned or user-assigned managed identities.
+          * Virtual network subnet configurations.
 
       - question: |
           Can I manage my API Management instance programmatically?

articles/api-management/api-management-howto-use-managed-service-identity.md

@@ -27,7 +27,8 @@ You can grant two types of identities to an API Management instance:
 - A *user-assigned identity* is a standalone Azure resource that can be assigned to your service. The service can have multiple user-assigned identities.
 
 > [!NOTE]
-> Managed identities are specific to the Microsoft Entra tenant in which your Azure subscription is hosted. They don't get updated if a subscription is moved to a different directory. If a subscription is moved, you need to re-create and reconfigure the identities.  
+> - Managed identities are specific to the Microsoft Entra tenant in which your Azure subscription is hosted. They don't get updated if a subscription is moved to a different directory. If a subscription is moved, you need to recreate and reconfigure the identities.  
+> - API Management managed identities are also specific to the Azure subscription in which the service is hosted. If you move the service to a different subscription in the same tenant, you need to recreate and reconfigure the identities.
 
 [!INCLUDE [api-management-workspace-availability](../../includes/api-management-workspace-availability.md)]