Change sender in a proxy call

Hi all,

we have a problem in the following scenario.

We have implemented a WebService, which can be accessed from several third-party clients using the same WSDL with Business System 'entry'. It entries to XI and we pass the masseage to a different ABAP-clients depending on the payload.

Now, we want to access this WS from ABAP-Clients via proxy. So, XI takes sender as ABAP-client, and we would like to change this in order to be the same Business system as beofre; 'entry'.

There is any way to do that?

Thank you!