woocommerce_no_stock action-hook . WC 1.0

Usage

add_action( 'woocommerce_no_stock', 'action_function_name_3739' );
function action_function_name_3739( $wc_get_product ){
	// action...
}

$wc_get_product

-

Where the hook is called

do_action( 'woocommerce_no_stock', wc_get_product( $change['product']->get_id() ) );

Where in WP core the hook is used WooCommerce