The issue is that with the wizard driven configuration, the parse xml that the wizard creates is unable to process the response as there is no body elements and throws this error / exception in the logs:
Thanks for the reply but that won't work since the operation style in our case is Document/literal and clipboard thing needs it to be RPC. However I have found the underlying casue for this. In Pega 7.1.7 (our version) you cannot save a connect-soap form by keeping the response tab empty, which was possible in earlier versions. This is solved in 7.1.8 and above. SO I had to try a workaround to circumvent this problem.