The new MFA function in ELMO application does not have any impact on the login flow to access payroll. Once you have enabled MFA function for your organisation, they will follow the user flows listed below to access Payroll.

Enter username and password --> Enter verification code --> Log into ELMO Application --> Click Payroll tab to access ELMO Payroll

If you are subscribed to ELMO Payroll, log into your ELMO Payroll instance as usual and go through the login process in ELMO Payroll for extra security

If you are subscribed to ELMO PayRTA module, log into your PayRTA instance as usual and go through the login process for extra security

You can check the following articles for further information on