Category Archives: Uncategorized

Voicemail Bug in Teams Mobile App (Android)

I came across a minor issue in the current build of Microsoft Teams for Android (version 1416/


When listening to voicemail, it will only play via the phone’s speaker.  It doesn’t matter if you toggle the speakerphone icon on the voicemail playback screen shown below.  This can be a bit problematic if you are trying to listen to your voicemail privately.


Rely on the built-in voicemail transcription if privacy is needed until a fix is released.  I have already reported this issue to Microsoft and they have ack’d as a bug in the build.




SharePoint 2013 Workflows Stopped Working?


    • System.CodeDom.CodeBinaryOperatorExpression is not marked as authorized in the application configuration file.
    • [WorkflowName] Failed to Run

If you try to re-publish your workflow, you will get an error similar to this:



A recent update for .net blocks types and assemblies that are not specifically called out in the config file.


Please see the steps and the script included in this KB:




Unable to Delete Azure AD Connect Sync’d Groups


You have Active Directory groups being sync’d to Azure AD via Azure AD Connect.  These sync’d groups are being used for assigning licenses in your tenant.  If you delete one of these groups from your Active Directory, AD Connect throws an error and you get an error alert email.

The error says:

The cause of the error is not clear. This operation will be retried during the next synchronization. If the issue persists, contact Technical Support.

If you open the Azure AD Connect Synchronization Service, you can also see the error there:


AAD Connect Error

If you try to delete the same group via PowerShell, you get the following error:


Remove-AzureADGroup : Error occurred while executing RemoveGroup.
Code: Request_BadRequest
Message: Group deletion is not allowed.



Azure AD blocks group deletion when the group is being used to assign licenses.  This is to help protect you from accidentally removing all of your users’ licenses with a single action.


Remove the license assignment from the group and run the sync again.  You can kick off the sync from your AAD Connect Server by running:

Start-ADSyncSyncCycle -PolicyType:Delta



Group Based Licensing: