Problem in giving two interface as request in synchronous call inside a BPM
I have a scenario where I am using BPM for Synchronous call to a BAPI. But I am getting the inputs for the BAPI from two different message type. So I have created a message mapping with both the message type as source and BAPI as target. I have also created two abstract message interfaces for these two message type and also containers for them. But in the BAPI synchronous call step, I can only specify one container as the request message. So I am now unable to give the input to BAPI from two different interfaces. Is there any way to solve this problem??