WordPress at a glance
action is not described

action_scheduler_stored_action action-hook . WC 1.0

Usage

add_action( 'action_scheduler_stored_action', 'action_function_name_9063' );
function action_function_name_9063( $post_id ){
	// action...
}
$post_id
-

Where the hook is called

ActionScheduler_wpPostStore::save_action()
action_scheduler_stored_action
ActionScheduler_DBStore::save_action()
action_scheduler_stored_action
woocommerce/packages/action-scheduler/classes/data-stores/ActionScheduler_DBStore.php 70
do_action( 'action_scheduler_stored_action', $action_id );

Where in WP core the hook is used WooCommerce

woocommerce/packages/action-scheduler/classes/abstracts/ActionScheduler_Logger.php 64
add_action( 'action_scheduler_stored_action', array( $this, 'log_stored_action' ) );
woocommerce/packages/action-scheduler/classes/abstracts/ActionScheduler_Logger.php 68
remove_action( 'action_scheduler_stored_action', array( $this, 'log_stored_action' ) );