SOAP Additional Parameters

Hello ,

              I have a requirement which is quite common and I tried to search solution for that in SDN but did not find one.

My  File --> XI --> Webservice

So I am using SOAP adapter.

And that Webservice requires three parameters to enter - client ID, user ID & password. User ID/Password I can enter in Comm.chanel and URL.

I can enter user ID and password, but where to enter third parameter which is client ID.

Is this some one can guide to the place.