did a migration of 500 users this weeken from S4B Server 2015 to Teams. Many users had AD-groups in the skype4B client and they have been migrated to Teams only, but now these groups shows empty in Teams.
There seems to be an issue where we can't add AD groups to Team chat for having the list for this. Any idea on how to fix this.
In Skype for Business it was possible to add a distribution list in the contact list and they were added in as a group. That feature is not available in Teams so what happen for your users is that the group was migrated (or at least the name of it) but not the contacts.
There is an uservoice request to have the same feature in Teams.