This feature is public preview

You now have the option to use the Azure AD B2C service with <YourTenantName> instead of using This has many benefits:

  • You no longer share the same cookie header size limit with the other Microsoft products.
  • You can remove all references to Microsoft in your URL (you can replace <YourTenantName> with your tenant ID). For example: https://<tenantname><tenantname>/<policyname>/v2.0/.well-known/openid-configuration.

    In order to take advantage of, you need to set some of the following:

  1. For your Run now endpoint make sure you are using <YourTenantName> instead of using
  2. If you are using MSAL, you need to set validateauthority=false. This is because the token issuer becomes<YourTenantName>