Azure B2C UPN authentication

1
votes

We have Azure AD in our tenant, being populated by our on premise AD.

We have an external application that is currently using forms based authentication (user accounts are stored in a DB). I'm looking at importing these user accounts into a new Azure B2C directory. I would like to retain the current login ID.

Very basic question: Can B2C users authenticate with both their B2C login ID as well as their UPN like they can in regular Azure AD?

1
azureazure-active-directoryazure-ad-b2c
Have you checked this out? – Shawn Tabrizi
Thanks. It doesn't help though. I'll be bringing external user accounts into a B2C deployment. I'm wanting to know if I can have the current login ID for these external users set as their new UPN in B2C. – Jeffmikers
Actually, let me see if I can clarify this a little more. If I import these external user accounts into a new B2C directory, they will all end up with a "[email protected]" login ID. I cannot change the login ID for these users, so I was considering importing their current login ID as the new UPN on the [email protected] user. This way the user can still authenticate with their original username, I simply don't need to advertise the @onmicrosoft login ID. – Jeffmikers

1 Answers

0
votes

If the user accounts in your database are simply usernames, you can import them as usernames (using the graph API) and then allow users to sign in using usernames.