Authenticating with an access token Connect-MicrosoftTeams

et01267 Does this mean you're using a user account to authenticate such as in the Resource Owner Password Credentials flow?

I'm trying to set up some automated scripts with the MicrosoftTeams module and they need to run without the context of a user. Normally I would use the Client Credentials flow and application permissions but this doesn't seem possible right now: it reports those two object reference errors. I suspect Connect-MicrosoftTeams depends on the "upn" attribute of the access token which doesn't exist for access tokens generated via Client Credentials flow since that flow doesn't include a user.

I tried to set up ROPC by granting the necessary permissions with admin consent and adding a new user to the Owners of the application and this at least allowed me to run Connect-MicrosoftTeams successfully but then every commandlet returns a 403. I suspect this is because the tenant I'm using requires MFA and according to the documentation that's incompatible with ROPC.

et01267

Are you using application or delegated permissions? I would imagine such a set up should use application permissions but according to the posts above and my own testing this doesn't work with Connect-MicrosoftTeams.