Merge pull request #42644 from naveedaz/patch-1

Update app-service-undelete.md

Author: Jak-MS

articles/app-service/app-service-undelete.md

@@ -12,14 +12,21 @@ ms.service: app-service
 
 If you happened to accidentally delete your app in Azure App Service, you can restore it using the commands from the [Az PowerShell module](https://docs.microsoft.com/powershell/azure/?view=azps-2.6.0&viewFallbackFrom=azps-2.2.0).
 
+## Re-register App Service resource provider
+Some customers might encounter an issue where retrieving the list of deleted apps fails. To resolve the issue, run the following command:
+
+```powershell
+ Register-AzResourceProvider -ProviderNamespace "Microsoft.Web"
+```
+
 ## List deleted apps
 
 To get the collection of deleted apps, you can use `Get-AzDeletedWebApp`.
 
 For details on a specific deleted app you can use:
 
 ```powershell
-Get-AzDeletedWebApp -Name <your_deleted_app>
+Get-AzDeletedWebApp -Name <your_deleted_app> -Location <your_deleted_app_location> 
 ```
 
 The detailed information includes: