Flow Lifecycle

While navigating between flows, for example from flow-a to flow-b, the current flow for a page changes from flow-a to flow-b. When this change happens, two events notifying the change are dispatched: 1) flow-b is entered, then 2) flow-a is exited.

The following table describes the two flow events:

Name	Description
vbEnter	Dispatched when entering a flow after all the flow scoped variables have been added and initialized.
vbExit	Dispatched when exiting a flow before disposing of flow resources.