Adding custom text to external IDP login screen only for users coming from B2C

Question

We are using Azure AD B2C for federated authentication. We are not using B2C "local accounts" feature, only external IDPs. Currently we only support Azure AD as external IDP, but we are planning to introduce others. Since we only support one IDP per customer we are using direct-sign-in and passing user's email as login_hint and their email domain as domain_hint in MSAL.js call. Domain_hint is then mapped in custom policies to their Azure AD tenant sign-in user flow. So users are not presented by the B2C screen, but are taken directly to the external IDP login.

Is it possible to add a custom text in B2C policies that will be displayed in Azure AD login screen ONLY if customer is coming from our B2C without modifying Azure AD of the customer?. Since we are doing direct sign-in we are bypassing B2C login screen and going directly to the IDP.

Answer 1

Hello @Marina Gurevich , currently that's not possible.