3426829 - Difference between "cf login --sso" and "cf login --origin" when you have IAS used as proxy

You want to know when follow Log On with a Custom Identity Provider to the Cloud Foundry Environment Using the Cloud Foundry Command-Line Interface, why "cf login --sso" command directs you to your Corporate Identity Provider for user authentication. But the "cf login --origin" command uses the local IAS credential for user authentication.  

SAP CLOUD PLATFORM

"cf login --sso" "cf login --origin" , KBA , BC-CP-CF-SEC-IAM , UAA, Authentication, Authorization, Trust Mgmnt , Problem