Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Ceepal1004,
As the error message says, distribution groups that are created in Office 365 through directory synchronization must be managed in the on-premises environment. Distribution group owners must manage the group by using on-premises tools for Exchange Server such as followings:
Exchange Admin Center, Exchange Management Console, Exchange Management Shell
After changes are made to the group in the on-premises environment, the changes are synced to Office 365 the next time that directory synchronization runs. Or, to see the changes immediately, you canforce directory synchronization.
We’d like to confirm if “The AD group IS updated (several months ago)” means you have changed the distribution group in on-premises. If yes and it doesn’t work, we need some information below for a better understanding:
- How and where did you update the group?
- How did you remove the group from on-premises AD?
Regards,
Larry