Yes Baskar, that is where I set the parameters in the FILE Sender channel. The message routes to the SOAP Receiver, and comes back to the correct Service Interface for response mapping. But there it just ends and does not go to the FILE Receiver.
Here is a screen shot of my file sender parameters:
Do you know how to debug what is happening with the module?
The extra 2 parameters are from this example:
FILE to RFC to E-mail - Process Integration - SCN Wiki
Maybe they aren't necessary, I'll try again without.