View guest users in a team
Anyone in a team can see all members of a team, including guests, via Manage team in Microsoft Teams. See who's on a team or in a channel has more details.
To identify guest users:
- Sign in to the Microsoft 365 admin center.
- Select Admin centers > Teams & Skype.
- In the Microsoft Teams & Skype Admin Center, select Users. You will see guest appended to the display name of any guest users.
You can also identify guest users from within a team that you own.