Hello everyone,

We have some external users who need to access specific Teams in our school. As we couldn't provide them with a company email address, we have invited them as guest users and assigned to their specific Teams. Some of them are using exclusively iOS devices and are now complaining that they can't see any Teams. In fact, at the end of the login process, they always get the message "No Teams orgs yet". They have other Teams accounts which work fine, but they can't add their guest accounts in the Teams app. This seems to be a well knows issue, as I saw several posts about that.

They tried to:

  1. logout from Teams, clear the app data in the iOS settings, reboot the iphone/ipad
  2. log out from OneDrive, clear the Account Settings, reboot the iphone/ipad
  3. access "" from an Edge/Chrome/Firefox private window - they always got the message "Hmm. Your browser version isn't supported. Quickest solution? Download the mobile app", which sounds weird, as Edge is the main Microsoft browser.

On a laptop the login works ok in a private window, starting from the link they received on the invitation letter (on the laptop at least they had the choice to "open the web app instead", while on the ipad/iphone it's not possible, they are automatically redirected to the Teams app).

Is there something that I've missed, that I could suggest to them? It seems the issue is related to cached credentials and not being able to login with their gmail/yahoo accounts as work accounts. Not sure if someone is also using the Microsoft Authenticator app...

Any suggestions would be greatly appreciated, thank you in advance!