Service Wizard: Provide Service Details — Select Service Parameters
You can map service data to or from values on the parameter page of the service being invoked. The wizard adds a data mapping field for each selected parameter to the Request and Response tabs of the generated service rules.
You can also enter default values for the selected parameters; these values are passed to the service activity when it is invoked.
Click the Arrow icon to expand the list of service parameters.
In the Default Value field, enter a default value for the service parameter, then click Next.