REST Webservice call - invalid SERVICE_ID

Hi,

I'd like to test the REST Webservice by calling the semantics3.com service. I've created a mashup configuration in my solution, aswell as a script.

I'm calling the webservice like this:

import ABSL;

import AP.Common.GDT;

var serviceID : LANGUAGEINDEPENDENT_Text;

var parameter : NameAndValue;

var parameters : collectionof NameAndValue;

serviceID = "PW00002";

parameter.Name = "products?q=";

parameter.Value = "{'upc':'883974958450'}";

parameters.Add(parameter);

var result = WebServiceUtilities.ExecuteWebService(serviceID);

var content = result.ResponseContent;

var code = result.ReturnCode;

When running this method, the error "Service ID MySolution/PW00002 is not active or not valid" occurs. The webservice is there and it's active! Do you have a guess what is wrong here?

Thanks a lot!

Greetings

Johannes