I am going though the process of adding external users (guest) to my Teams in environment. Piece I am stuck on is the invite. I add then as a guest and the email gets sent but then. I get this message:
Sign into invited account
you are currently signed in as ******@gmail.com, however, *******_gmail.com#EXT#mydomainname.onmicrosoft.comwas invited. Do you want to switch.
This is on the first invite, that user is not logged in.
How do I have the invite only be their Gmail address?
@imfruity Hi, I assume you are using your own personal credentials testing this? That is, you're managing multiple user credentials with one computer/browser?
As a 'best practice' when working like this I suggest that you use InPrivate / Incognito windows to not get mixed cached credentials.
The "EXT" part is added when inviting a guest account so if you cannot seem to get this to work my second suggestion is to remove the guest account (EXT) from AAD and the AAD recycle bin as well for permanent deletion. Wait 24 hours, then either add the guest account directly in AAD or create a new invite from the Team.