SOAP sender - problem with endpoint

Hi All,

I have SOAP - PI - RFC scenario.

I have sender agreement and take the WSDL.

When I test it in WSNavigator - it is ok. Endpoint format is http://<server>:<port>/XISOAPAdapter/MessageServlet?senderParty=&amp;senderService=<service>&amp;receiverParty=&amp;receiverService=&amp;interface=<interface>&amp;interfaceNamespace=<namespace>

When I test it in XMLSpy (for example) - it return http error 500

If I change my endpoint to http://<server>:<port>/XISOAPAdapter/MessageServlet?channel=:<service>:<channel> - it is work fine.

what is the matter? In principle both approaches should work in PI 7.1.

my system is 7.1, SP07

Regards,

Andrey.