Adding external users to Teams using Graph API or Powershell

Question

Is there a way to add external guests to teams using Graph API or Powershell?
I have used this to add people.
https://learn.microsoft.com/en-us/powershell/module/teams/add-teamuser?view=teams-ps
But it turns out that it only works if the email used already exists in the directory as I added my test email manually through the Teams App.

Answer 1

You need to invite them first, you can do so via the Azure AD (preview) module: https://learn.microsoft.com/en-us/azure/active-directory/external-identities/b2b-quickstart-invite-powershell
Or the corresponding Graph API endpoint.

Answer 2

Hi!

As a supplement, you can also invite guest users in bulk with Azure Active Direcotry B2B collaboration. You need two or more test email accounts that you can send the invitations to. For more details, please refer to:

https://learn.microsoft.com/en-us/azure/active-directory/external-identities/tutorial-bulk-invite#invite-guest-users-in-bulk