Details

Why This Issue Happens

macOS stores login credentials in the Keychain as well as in application cache folders. Even after changing organizations, Microsoft Teams continues to use this stored data, causing repeated login redirection to the previous account.

Step 1: Remove Saved Credentials

Go to Applications ? Utilities ? Keychain Access. Search for "Microsoft Teams" and delete all related saved passwords.

Step 2: Fully Close Teams

Right-click the Microsoft Teams icon from the Dock and select Quit.

Step 3: Delete Teams Cache Files

Open Finder ? Go ? Go to Folder and enter: ~/Library/Application Support/Microsoft. Locate the Teams folder and move it to Trash.

Step 4: Clear Identity Cache

Open Keychain Access again and search for "Microsoft Teams Identities Cache". Delete the entry.

Step 5: Restart Teams

Launch Microsoft Teams again and sign in using your correct account.

Conclusion

By removing stored credentials and clearing cached data, you can stop Microsoft Teams from redirecting to old organization logins. This method provides a complete reset and ensures smooth access to the correct account.