Thanks for posting your question in the Microsoft Q&A forum.
You can follow these steps to resolve your issue:
- In the Exchange admin center go to Recipients > Groups and select the distribution group you want to delete. Click the delete icon to remove it from Exchange Online
- In the Azure Active Directory admin center go to Groups and search for the distribution group. Select it and click Delete to remove it from Azure AD.
- If the group still persists in Azure AD after deletion, you may need to use PowerShell cmdlets to force the removal:
-
Connect-AzureAD $group = Get-AzureADGroup -SearchString "GroupName" Remove-AzureADGroup -ObjectId $group.ObjectId
- If the group still appears in the Azure AD sync process, you may need to remove it from the on-premises Active Directory as well. Once deleted from local AD, the next sync will remove it from Azure AD.
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