If there are changes to services you are consuming from a SOAP web service, you just have to refresh it in Service Studio.
For that, do the following:
In the Logic tab, open the Integrations folder.
Under SOAP element, right-click the SOAP Web Service you want to refresh and select Refresh SOAP Web Service....
You can only refresh a SOAP Web Service if it has the same name. If the name of the SOAP Web Service changes, Service Studio returns the following error message: "Error loading WSDL."
The Refresh operation provides a report with the differences detected between your version of the SOAP Web Service and the new one; if there are no changes, a window is displayed with the following message: "No differences found."