Note: The user has not activated the Azure Authenticator mobile app on their device or been assigned a third-party OATH token ...

Note: The user has not activated the Azure Authenticator mobile app on their device or been assigned a third-party OATH token and is considered incomplete for the OATH Token method.  Authentications to protected applications will fail for this user and log ins to the User Portal will require them to enroll again.  It is recommended that you either contact the user to assist them with activating the Azure Authenticator mobile app or assign and distribute a third-party OATH token.