How do I configure multiple SSO IdPs in Azure AD B2C?

Question

I have an application that uses AD B2C for authentication. I need to allow external IdPs to authenticate via SSO into my application via ADB2C. I followed the steps in this documentation and it worked well for one IdP. https://learn.microsoft.com/en-us/azure/active-directory-b2c/identity-provider-generic-saml?tabs=macos&pivots=b2c-custom-policy

My use case requires setting up multiple IdPs and unfortunately this documentation requires creating a new claims provider and technical profile for each IdP set up. Is there a way to set up multiple IdPs without coding them into the custom policy?

Answer 1

Hello @Anonymous , IdPs have to be coded in custom policies however if you want to make many available to others you can define them in one base custom policy so that it can be inherited/shared by others. This is thanks to B2C Inheritance model.

Additionally, you might take a look to ClaimsProviderSelections to know more about the IdP selection process.

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