Zoom: "Unauthorized User" SSO Error
Covers what to do when Zoom gives the error message: "unauthorized user"
If you are trying to join a Zoom meeting and receiving an error message about being an "unauthorized user," it is likely because you have not logged into your UIUC Zoom account using single sign-on (Zoom - Signing in via SSO (Required)). Open the Zoom app, then sign in with SSO. After you have signed in, try launching the course from Canvas again.