I would like to transfer the username/PW, which is supplied, when a specific web service is called. The web service is supposed to be exposed on PI 7.0 and will transfer the request to a function module in ECC 6.0 via an RFC communication channel in PI 7.0. Typically, you specify the username/PW in the RFC comm. channel in PI, but how do I dynamically specify the received username/PW from the web service call in that RFC call to ECC 6.0? Maybe SAML is the answer, but it seems a bit cumbersome in my case.