Can I authenticate with SAML when calling a SOAP web service that was created from an SAP Portal service? (This is assuming that the SAP Portal is already configured to authenticate using the SAML token.) I would want to embed the SAML token in the request to the SOAP web service. If this is possible, please supply me with details. For example, where / how would I embed it? What version of SAML, and of SAP Portal would I need to be on?