message invalidArgumentFault
parts 
invalidArgumentFault
element ex:InvalidArgumentFault
used by 
Operation listPageFlows in PortType PageFlowService
Operation startPageFlow in PortType PageFlowService
Operation updatePageFlow in PortType PageFlowService
Operation injectPageFlowEvent in PortType PageFlowService
Operation cancelPageFlow in PortType PageFlowService
source  
<wsdl:message name="invalidArgumentFault">
  <wsdl:part name="invalidArgumentFault" element="ex:InvalidArgumentFault"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy