Enforce mobile number at first login

[Harry Dubois]

I am searching for the option to enforce a new user to register his / her mobile number for authentication, but no luck yet. Now a user can click on Next without registrering this phone number.

[#2]

Is that for MFA or SSPR? You can try the new combined experience: https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-registration-mfa-sspr...

[#3]

Thanx Vasil for your answer. This is now for SSPR only. Students here use only Office 365 for their password (in the backend there is a sync with the LMS). When they do the first login they are not forced to give a mobile number for SSPR Is this an option in Azure AD to force this registration?

[#4]

The only option we have in the current experience can be found here: https://portal.azure.com/#blade/Microsoft_AAD_IAM/ActiveDirectoryMenuBlade/PasswordReset