When an employee changes their cellphone, a MFA reset will have to be completed.

Employee will need to create a ticket to have their old MFA setup deleted.  IT will then go into Entra and require a new setup under their user account:

The Employee needs to go into the Time Mfg Account in the MS Auth app - click on the gear in the upper corner - then remove account.

Employee will then need to use this link to re-register their account on the new phone.

Entra ID MFA link:  https://aka.ms/mfasetup