You can change the WooCommerce  Additional Information placeholder text field in the checkout page with the woocommerce_checkout_fields filter. Use it in your themes  functions.php file like so… add_filter( ‘woocommerce_checkout_fields’ , ‘wpb_custom_additional_info’ ); // Change placeholder text in Additional Notes function wpb_custom_additional_info( $fields ) { $fields[‘order’][‘order_comments’][‘placeholder’] = ‘Any additional notes for delivery’; return $fields; } Change…