I have a few Distribution Lists that I am unable to edit or delete on Exchange 365.
We currently have an on-premise AD synced to Azure AD.
The Sync Status for the groups are showing as Cloud.
When I click on them in Exchange I get "Unable to read the configuration" and the same if I try to delete it.
There are duplicate groups setup as Dynamic Distribution groups with the same name and email address that I can edit.
There are also the original Query-based Distribution Groups with the same names in the on-premise AD from when we previously had on premise Exchange servers.
I deleted one of the on-premise groups as a test last week but it made no difference to the Exchange 365 groups.
If I access the same group in Azure AD directly I can view it and the members but I am unable to edit or delete it from there either.
It is also specified as Source = Cloud and Type = Distribution