Multiple SOAP fault support in PI?

Question

Hi Guys,
We have a webservice that has multiple SOAP faults as part of the WSDL. Normally a sync WS will have a request, a response and a fault. My question is does PI support multiple faults?
If i look at the SI, it lets me add multiple fault messages. Even in operation mapping, I get the option of doing the multiple mappings for multiple faults. But when I test, it throws up an error mentioning that the mapping does not exist in the cache. If I remove the multiple faults in SI (only provide one fault) and hence the same in OM, it works perfectly fine. But PI doesn't seem to like multiple faults in SI and OM and hence mess things up during runtime.
So does PI really support multiple faults? Can it handle multiple faults being triggered from the target and route it to the source application?

Answer 1

Ok, we analyzed this further and here is one answer:
Synchronous service operations can absolutely handle more than one fault message. We checked this with ABAP-Proxy to  ABAP-Proxy and also ABAP-Proxy to SOAP Adapter.
The problem we had before was due to a missing namespace information: in the response the namespace qualifier of the top level tag of the individual fault in the SOAP Envelope was not set.
Here is my hypotheses about what happens: If there are more than one fault messages mapped in an operation mapping, the system must be able to find the correct one. To do that, not only the fault message tag name, but also its namespace must be set precisely in the response message. Otherwise the massage processing stops and a u2018missing mapping programu2019 is reported. Since the correct message mapping corresponding to the actual fault received could not be identified, in the error reported in the message log the system refers to the next best thing it has at that point which is the ID of the operation mapping. However, that is a bit misleading, since the operation mapping itself was found and there is nothing wrong with it.
Hope that helps
Eberhard