WordPress at a glance
action is not described

woocommerce_order_action_(action) action-hook . WC 1.0

Usage

add_action( 'woocommerce_order_action_(action)', 'action_function_name_514' );
function action_function_name_514( $order ){
	// action...
}
$order
-

Where the hook is called

WC_Meta_Box_Order_Actions::save()
woocommerce_order_action_(action)
woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-actions.php 139
do_action( 'woocommerce_order_action_' . sanitize_title( $action ), $order );

Where in WP core the hook is used WooCommerce

Usage not found.