Multi-factor authentication is required for all users and can’t be disabled.
Once a user has set up a multi-factor authentication app, they don’t need to set it up again unless they change their mobile device. (See Resetting Multi-Factor Authentication for Users.)
Resetting Multi-Factor Authentication for Users
If a user replaces their mobile device, you need to reset the multi-factor authentication on their account. Resetting multi-factor authentication on a user's account forces them to re-configure their authentication app before they can log in to Barracuda RMM again.
You cannot reset multi-factor authentication on an account until the user has completed the initial configuration.
To reset multi-factor authentication on an account
In Service Center, click Configuration > Users & Roles > User Management.
Click the name of the user account you want to reset.
Click the Profile tab.
Click the Reset Configuration Process button.
Click OK.