Hello. I'm an admin and user, somewhat techy but not an IT person. There appears not to be a Teams channel in the MSFT support community (answers.microsoft.com), so I hope that this channel is hospitable to nonexperts. My questions:
1. Do I need to, or should I, add an external collaborator in AAD before adding them to Teams?
2. Is it possible to use Teams to chat with an external w/o creating a team to add them to, similar to SfB, or is "the team" central to all of Teams' other functionality?