You can trigger custom error handling that does not alter the control flow in a process. A notification is used to select a specific service to invoke when one of several status changes or exceptions occur. The specified service runs without changing the process or step status along the way.

For example, if you want a service to run when the process status changes to Completed, you associate a service with the Completed status. The custom error handling can be set up on the Notifications tab in the process's properties in Designer.