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.