Always On is the term used to describe a Workflow that executes continuously until explicitly stopped. Workflows that are enabled for Always On usually commence with a Trigger Node. When a sequence of execution completes, control is returned to the Trigger Node which blocks until the trigger condition is met.
Once this setting is enabled, user can start a Workflow in Always On mode by clicking the
Turn On button on the Workflow Landing Pane. When this option is enabled, the workflow will be started automatically whenever it stops. It may stop due to a Workflow error or after an engine restart.
Workflows that support both Run Now and Always On should have both the
Run Now Execution Flow Outputs connected on the Start Node.
See https://flowgear.me/s/7K7hGzf for an example of this pattern.