Always On v1
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.
To permit a Workflow to run in Always On mode, enable Always on in Workflow Design Settings.
After enabling this setting, open the Workflow Landing Screen, click Always on, and select the Environments in which the Workflow should run.
The Workflow will begin to execute immediately and will automatically be restarted within 15 minutes if it errors or is shut down due to an update or recycle.
Automatic Always On startup is managed only by the region currently recognized as the active primary. Signing in explicitly to the secondary region does not start a second set of Always On Workflows there. See High Availability and Disaster Recovery for regional recovery checks.
Workflows that support both Run Now and Always On should have both the Start and Run Now Execution Flow Outputs connected on the Start Node. The Start output will be used when the Workflow is fired up under Always On, while the RunNow Output will be used for all other activation modes (for example, Run Now, API Invoke).