Mapping from source outbound structure to the response inbound structure

Hi All,

I have the following scenario:

System A is invoking a synchronous interface in PI 7.1 via SOAP. This synchronous outbound interface has Request A and Response A. PI then invokes System B via a synchronous SOAP web service. This synchronous inbound interface has Request B and Response B.

My issue is that this scenario requires a mapping from Response B to Response A but Response A requires a value from Request A (which does not exist in Response B). Is there any way to accomplish this other than BPM??

Regards,

JM