2461598 - Logon using SAML fails due to case sensitivity

• Java system acts as Identity Provider(IdP) and and Ariba Cloud acts as Service Provider(SP).
• In Ariba system, all user IDs are created in lower case and User IDs in Ariba are case sensitive by design.
• When a user is authenticated from Portal login page (which is case insensitive for user ID), the Portal (IdP) sends the Login ID in the Name ID parameter of SAML response in mixed case (as it is in the UME) and not in lower case. Since this is sent in mixed case, the Ariba system interprets that this user does not exist and the login fails. 
• UME used is LDAP.

   SAP Netweaver Java acting as Identity Provider(IDP) and Ariba Cloud as Service Provider(SP).

SAML,LDAP,Ariba, SSO, Identity_federation,user_mapping,SAML2.0,SSO_wizard,authentication,UME,active_directory_service,httpwatch, IDP, Identity, Provider, Serivce, token, trace,case_sensitive,upeer_case,lower_case , KBA , BC-JAS-SEC-SML , JAVA SAML 1.1 and 2.0 , BC-JAS-SEC , Security, User Management , Problem