<Error Type="4">Could not locate RequestorID/@ID in MessageContext</Error>

I am using siteconnect. I created new SOAP PROJECT with initial wsdl as https://cmtpi.siteminder.com/siteconnect/services/siteconnect_v1.1.0.wsdl

And then there appears four services of which I am using HotelAvailReq, try running any of service it will return response for HotelResNotifRS.

Link of webservice is : https://siteminder.atlassian.net/wiki/display/SITECONNECT/SOAP+Message+Structure