Your scenario is:
Third Party System -> (SOAP Sender) -> PI -> (SOAP XI) -> ABAP Proxy?
If so, just try it. Create PI configuration, give link (endpoint url) to client and see what happens..
Your scenario is:
Third Party System -> (SOAP Sender) -> PI -> (SOAP XI) -> ABAP Proxy?
If so, just try it. Create PI configuration, give link (endpoint url) to client and see what happens..