The properties of the Catch element are defined in the Properties window. You can also right-click the element on the diagram and choose Properties. The available properties are:
Fault Name. Select the qname of the fault from the list of faults, which contains faults defined in the WSDL files.
Fault Variable Name. Specify the name of an existing BPEL variable that will contain the fault message.
Fault Variable Type. Specify the type of the variable.