If you’re the owner or an admin of a Facebook group, you’ll be able to connect it to your Buffer account. Whilst we authenticate your Facebook group through your personal profile, we won't access your personal information or post on your profile. A group may only be connected to one Buffer account.
Posts published to a Facebook group will appear as being posted by the Facebook member who connected the group to Buffer. If you have additional users who have access to this group in Buffer, any posts they schedule and share will also appear as being posted by you (if you're the person who connected the group).