Azure AD B2C MFA saves phone number without space in custom ploicy

apparao 1 Reputation point

I am unable to save the MFA phone number without space in azure portal via custom policy ,can anyone provide the update on this ?

Microsoft Entra External ID
Microsoft Entra External ID
A modern identity solution for securing access to customer, citizen and partner-facing apps and services. It is the converged platform of Azure AD External Identities B2B and B2C. Replaces Azure Active Directory External Identities.
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  1. Akshay-MSFT 16,926 Reputation points Microsoft Employee

    Hello @apparos-4362,

    I was able to go through query where you have mentioned that MFA does work fine but you are not able to perform the following actions:

    As per This method is available only for standard Azure AD and B2B users, but not B2C users. which could be causing you have an empty array in return:


    • Since these numbers could not be retrieved via List or GET actions hence "Delete" is not possible for an empty array.
    • I would request you to post it as feature request on our feedback portal. to access Phone authentication for B2C users via Graph.

    Please do let me know if you have any queries.


    Please "Accept the answer" and "Upvote" if the suggestion works as per your business need. This will help us and others in the community as well.

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