Business Object creation error: The service mapping is missing

Hi developers,

In my CAF 7.1, I have my business object "maintenanceRequest" with several attributes.

Persistency is remote. Permission check is disabled.

Create operation is mapped to the external service (enterprise service) createMaintenanceRequest.

The input fields are mapped, output fields are not mapped since create operation doesn't have any.

All the other operations are not mapped.

I have exposed as web service the operation "create",

I have generated, built and deployed the app.

When I try to run it from wsnavigator I get an error in the SOAP response:

com.sap.caf.rt.exception.CAFCreateException: The service mapping is missing

Please note that the ES works ok (e.g. from Visual Compose 7.1).

The ES was imported in NWDS 7.1 from service registry.

Can anyone please help?

Thanks, regards

Vincenzo