Mapping between Sync sender and Async Receiver

Hi Experts,

How to do mapping between Sync sender and Async Receiver?

Flow: Sync SOAP Sender Client -> First Async webservice call -> Second Sync webservice call

1. I have to send some input/request details to first webservice call. It will just update the database.If I do mapping with SOAP Sender client and first Async webservice.. I am getting timeout, because it expects response mapping too.

2. Only Second webservice call return the response back to SOAP Sender client.Here mapping between SOAP Sender client and Second Sync webservice call. I don't have any problem here.

I have to pass the same request info to both webservice calls, Please tell me how to do the async mapping in BPM?

Regards

Sara