Using XI WebService in CAF as external service with Logical Destination?

Hello,

I created a scenario WebService -> XI -> WebService in a PI7.1 system. I used the Web Service Wizard in order to generate a WSDL. If I test it in for example in XMLSpy it works fine.

We then imported this WSDL into CAF as external service. That also works.

But we would like to use a logical destination for that external service. Unfortunately there are only three types of Destinations possible: WSDL, WSIL and ServiceRegistry. But, the endpoint of the generated WSDL isn't a URL to a WSDL but to a MessageServletm like this:

"http://pwdf2655.wdf.sap.corp:55000/XISOAPAdapter/MessageServlet?channel=:SOAP_Call_Client:SOAP_Client&version=3.0&Sender.Service=SOAP_Call_Client&Interface=http%3A%2F%2Fsap.com%2Fcd%2Fbasfpoc%5EGLAccountPostingSync_Out"

How can I use logical Destibnations with such an Endpoint? We would need that logical Destinations in order to define user and Password.

Thanks and Best Regards

Katharina