Hi, I wanted to share an edge case issue we had. We had a teacher whose SDS created Team got deleted (not uncommon). They'd renamed it which made find it a little challenging, but once we knew the new name we went to restore it and got an error that the mailnickname already existed and the group couldn't be restored. We then did a search for the original Team name and found it in Groups (in Azure AD) and it was orphaned (no owner/no members). Normally SDS won't recreate such a group but it did in partial. Our solution was to delete the new, orphaned group, then permanently delete it from the deleted groups and subsequently restore the original group (which was then successful). Hopefully this helps.
