Using b2clogin.com

Important

This feature is public preview

You now have the option to use the Azure AD B2C service with <YourTenantName>.b2clogin.com instead of using login.microsoftonline.com. This has many benefits:

  • You will 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>.onmicrosoft.com with your tenant ID)

    In order to take advantage of b2clogin.com, you need to set some of the following:

  1. For your Run now endpoint make sure you are using <YourTenantName>.b2clogin.com instead of using login.microsoftonline.com.
  2. If you are using MSAL, you need to set validateauthority=false. This is because the token issuer becomes<YourTenantName>.b2clogin.com.