/* Disable Purchases in WooCommerce */
add_filter( 'woocommerce_is_purchasable', '__return_false');If you want to disable purchases on your site, temporarily, for maintenance related issues or emergency holidays/ vacations etc., add the above code to your child theme’s functions.php. Your customers will not be able to complete purchase as the Products on your site aren’t allowed to be purchased. A temporary catalogue mode runs on your site.