Hmm... I wonder if you are hitting this issue with the SOAPAction incorrectly generated:
https://issues.apache.org/jira/browse/TUSCANY-3824 I'd imagine it would be simple to patch this to get your SAP service invoked... but it might take a bit more thought to fix in a way as to not break our Tuscany tests. I can't promise when I could do this, but the offending code is in binding-ws-wsdlgen/src/main/java/org/apache/tuscany/sca/binding/ws/wsdlgen/Interface2WSDLGenerator.java if you have the source downloaded and are willing to give that a try. (I know this is the user list not the dev list... but it's probably better to mention that than just say nothing at all). Scott
