Cannot receive PI response data in SAP BPM

Hello SDN,

I have a simple Business Process Modell (made in SAP NWDS - Java / see screenshot) with a synchronous interface as automated activity that calls a Web Service over PI 7.3. The start trigger is mapped with the request of the message type of synchronous interface. In that activity, we use a service reference from type XI.

I can pass request parameter values by testing at NWA and the call works fine. Also the intergrated configuration returns values, but I cannot receive these in my process modell.

Thanks, Cheers

Cengiz