Reply To: Add Products Name is message

[Soft79]

You can achieve that by using the following snippet in functions.php:

add_filter('woocommerce_coupon_error', 'my_custom_woocommerce_coupon_error_message', 999, 3 );
function my_custom_woocommerce_coupon_error_message( $err, $err_code, $coupon ) {
  if ( $coupon->code == 'MY_COUPON_CODE' ) {
    $err = 'MY ERROR MESSAGE';
  }
  return $err;
}

Replace MY_COUPON_CODE with your coupon code and MY ERROR MESSAGE with the message you would like to show.