What should be done if I encounter authentication errors while attempting to log in to a Microsoft 365 app using multi-factor authentication?

If you encounter authentication errors while attempting to log in to a Microsoft 365 app using multi-factor authentication, you can try the following steps:

1. Ensure that the correct verification code has been entered.
2. Ensure that the Microsoft Authenticator app on your mobile device is the latest version.
3. Attempt to uninstall and reinstall the Microsoft Authenticator app.