The issue is not with on boarding the user into SMP. The SAML Authentication is successful and user has been successfully on boarded in SMP.
The Authorization header required for Backend to Authenticate and Authorize the user is passed as "Authorization" header from Mobile application. SMP needs to forward the "Authorization" header to the Back end service. The issue is SMP is not forwarding the "Authorization" header to the Backend Service.
Here are the screenshots of configuration:
Regards
Gigi Mathew