An activity that does nothing when it executes. Occasionally you may need to use an activity that does nothing, for example when a fault needs to be caught and suppressed. You can also use the Empty activity to provide a synchronization point in a flow.
To build an empty activity
From the palette, drag an Empty activity to the BPEL Editor.
Choose which activity you want to use to replace the Empty activity. You have four options: Invoke, Assign, Receive, or Reply. These options are available in the Properties view.