About Action Scheduler 3.9.3

Action Scheduler is a scalable, traceable job queue for background processing large sets of actions. Action Scheduler works by triggering an action hook to run at some time in the future. Scheduled actions can also be scheduled to run on a recurring schedule.

Source

Action Scheduler is currently being loaded from the following location. This can be useful when debugging, or if requested by the support team.

Plugin: WooCommerce

WP CLI

WP CLI commands are available: execute wp help action-scheduler for a list of available commands.