Azure AD B2C issue

Question

As part of this MFA flow end user phone number is not getting updated in Azure AD B2C. For existing users, the phone number format is not correct and hence CALL ME or SEND CODE below buttons are inactive

Note: if I manually enter phone numbers in Azure AD B2C authentication contact info directly then these two buttons are working fine as expected.

Answer 1

How can we set default option in MFA (Email/Phone) per user wise via custom policy?

Answer 2

@Advait Kulkarni , thank you for reaching out to us. I see that you want to update the incorrectly saved phone numbers of Azure AD B2C users. Currently, there are three ways in which you can achieve this goal:

• Set the authentication data with PowerShell version 1: Connect-MsolService Set-MsolUser -UserPrincipalName user@keyman .com -AlternateEmailAddresses @("email@keyman .com")
  Set-MsolUser -UserPrincipalName user@keyman .com -MobilePhone "+1 4251234567"
  Set-MsolUser -UserPrincipalName user@keyman .com -PhoneNumber "+1 4252345678" Set-MsolUser -UserPrincipalName user@keyman .com -AlternateEmailAddresses @("email@keyman .com") -MobilePhone "+1 4251234567" -PhoneNumber "+1 4252345678" OR Set the authentication data with PowerShell version 2: Connect-AzureAD Set-AzureADUser -ObjectId @domain.com -OtherMails @("@domain.com")
  Set-AzureADUser -ObjectId ******@domain.com -Mobile "+1 4251234567"
  Set-AzureADUser -ObjectId ******@domain.com -TelephoneNumber "+1 4252345678" Set-AzureADUser -ObjectId @domain.com -OtherMails @("@domain.com") -Mobile "+1 4251234567" -TelephoneNumber "+1 4252345678"
• You can Update phoneAuthenticationMethod using Graph API (Beta).
• You can setup Azure AD B2C custom policy that allows a user to edit their phone number: Check out this Stack Overflow's thread for more information (Though, I have not tested this approach yet).

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