In the old days of Oracle ESB, we could defined WSDL services with multiple operations. Is the OSB you do the same. Nothing new so far. But when you create a proxy service based on the multiple-operation WSDL, you will get an error "OSB Kernel:398034".
OSB Kernel:398034]Two operations expect the same incoming message, you must use a selector different than message body.
This error cna be fixed, by selecting a different "Operation Selection Configuration". This can be done by selecting your proxy-service and select the "Operation" tab sheet in Eclipse Workshop. Here you determine how algorithm of the operations are handled.. In our case select 'SOAPAction Header'.