Cloud Kicks (CK) keeps track of its shoe inventory in Salesforce. When an order's status is changed to Activated, the inventory for the ordered shoe is reduced. At that point, a SOAP web service on…

Cloud Kicks (CK) keeps track of its shoe inventory in Salesforce. When an order's status is changed to Activated, the inventory for the ordered shoe is reduced. At that point, a SOAP web service on the CK website must be called so that the website is updated to display the correct inventory amount for the shoe. What should an app builder use to communicate to the CK web service when a shoe's inventory has changed?