MessagingException: Error encountered while executing mapping - Where to see response message?

Question

I'm running an SAP PI/PO scenario and having a problem with finding the response message (the error one).

Scenario: PROXY (class) -> SAP PI/PO 7.5 -> SOAP (wsdl)

The error when executing the scenario is:

Transmitting the message using connection SOAP_ http://sap.com/xi/XI/System failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Error encountered while executing mapping: com.sap.aii.af.service.mapping.MappingException: com.sap.aii.utilxi.misc.api.ResourceException: Could not determine mapping steps for message 3b14b3f8-0860-11ed-a034-000001795062

The problem is that I cannot find the message (3b14b3f8-0860-11ed-a034-000001795062) in SAP PI monitor. It's the response message (who is causing the error), as the request message I did find in the monitor and it's correct.

Where I can find it? Why is not showing?

From what I read, this problem happens with several reasons, I just want to find this message.

The webservice works correctly, I test it in SOAP UI.

Answer 1

To find the response message (which contains the error), we have to first activate the Integrated Configuration log (it's not active by default).

To activate the log, we have to follow these steps (more info: https://blogs.sap.com/2012/11/06/message-staging-and-logging-options-in-advanced-adapter-engine-of-pi-73x/ )

1. Go to "Advanced Settings" in the target Integrated Configuration.
2. Change the "Use global configuration" radio button to "Use scenario-specific configuration" in both, "Staging" and "Loging".
3. Change all "Staging" lists to "Store".
4. Change all "Logging" lists to "Log".
5. Save and activate.

Now, in the SAP PO monitor (Message monitor), by clicking the "Related Messages" option, we can see the response message error.

In this case, the error was:

<sap:Error xmlns:sap='http://sap.com/xi/XI/Message/30' SOAP:mustUnderstand='1'>sap:CategoryXIAdapter</sap:Category><sap:Code area='SOAP'>FAULT</sap:Code>sap:P1http://schemas.microsoft.com/ws/2005/05/addressing/none</sap:P1>sap:P2ActionNotSupported</sap:P2>sap:AdditionalTextThe message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, eg Message, Transport, None).</sap:AdditionalText><sap:ApplicationFaultMessage namespace='http://schemas.microsoft.com/ws/2005/05/addressing/none'>ActionNotSupported</sap:ApplicationFaultMessage></sap:Error>

In which the Action was empty.