Additional sign-in or account-related issues within Microsoft Teams for business
Yes.
A Teams meeting can be joined without signing in if the meeting organizer allows it. From the meeting invite, select the meeting link, then choose Continue on this browser or Join on the Teams app, enter a name if prompted, and select Join now. On mobile, use the invite link and select Join as a guest.
In some meetings, admin or organizer settings block unverified users. In that case, a one-time passcode sent to email or a signed-in account may be required.
Joining with a different account or domain is also supported:
- Open the meeting from the Teams calendar or meeting link.
- On the pre-join screen, select Change or Switch.
- Choose another signed-in account, or select Add another account / Use another account.
- Join the meeting.
If the meeting is restricted to the account that received the invite, Teams can show messages such as Sign in with a different account to join this meeting or require signing in with the invited work or school account.
If joining from another organization as a guest, switch to the correct org in Teams before joining, and confirm the correct domain appears on the pre-join screen.