Forum Discussion
Microsoft Teams on MAC wont let me change log in
In case anyone else has the issue that the login is broken or set to an account that no longer exists, remove the "Teams" folder from ~/Library/Application Support/Microsoft (Finder - Go to Folder) and remove any "Teams Identity Cache" from Keychain access (search in the top right of the Keychain Access window). Restart Teams and it should prompt for login info.
In case anyone else has the issue that the login is broken or set to an account that no longer exists, remove the "Teams" folder from ~/Library/Application Support/Microsoft (Finder - Go to Folder) and remove any "Teams Identity Cache" from Keychain access (search in the top right of the Keychain Access window). Restart Teams and it should prompt for login info.
This process worked. I first deleted Teams Application with CleanMyMac app. Then I followed your instructions. Then I went to the online version of teams and logged in there with my new work email. From the work Teams, there is a download Teams for Desktop. I did a fresh download and install. It came up and asked me to select my personal Outlook account or my work account. I selected my work account and it loaded perfectly.
The only really reliable way to clean broken but cached logins to the Teams App (classic and new) on the Mac, is the total reset of the login keychain.
https://www.youtube.com/watch?v=yEB7QhoUR0Y
You might damage the saved logins on your iOS devices as well. Please check the video how to backup and restore the password.
The annoying thing with these cached credentials is actually, that the Teams App also caches more than just the user email and password. If users have been moved (with the same email) between AD tenants, or suddenly use a SAML SSO to get into their microsoft account, it will still revoke the cached original account attributes and logins will fail.
Microsoft, please watch the video!
It is so reproducible to break the Teams App.
And now to reset it.
