I ran a session that contains a web service source or target definition or a Web Services Consumer transformation in its mapping, and the session failed. I see a SOAP fault message in the session log that does not describe the error.

A SOAP fault message cannot identify an improper Web Service application connection. If you see an unspecific SOAP fault message in the session log after a session fails, check the application connection settings or the endpoint URL contained in the WSDL file. Use the Workflow Manager to check the application connection. Check the following application connection characteristics:

If the application connection settings are correct, use a third-party SOAP diagnostic tool to validate the SOAP request.