...
To add a new service click plus ( + symbol ) symbol in web services list from process designer dashboard.
Enter the web service address in URL field. (Example: http://www.webservicex.net/globalweather.asmx?WSDL )
...
After clicking on 'Ok' button service is automatically discovered in couple seconds and service methods are displayed on screen.
Service discovery scans the available methods on service and automatically registers the web service xml data types in "External Xml Schemas".
...