WSDL File and SOAP Event Source
A WSDL File specifies the characteristics (input message, output message, fault message, and so on) of a web service. The SOAP Event Source process starter configuration determines the concrete WSDL file that describes the web service that the process definition implements.
The Configuration tab of this process starter requires that you specify a Port Type. This port type is taken from a WSDL file resource. Instead of creating a new WSDL File resource, you can use an existing concrete service description. However, the concrete description of the service get generated based on the configuration of this process starter.
Note: Only Bytes Message must be used when using MTOM attachments.