Thanks so much for the response kuroi. I had a feeling it had something to do with orders.php. I am a little confused though. I verified I am on Zen Cart 1.3.8. Could it be that I am trying to use the 4.7AJAX mod instead of 4.7MULTIADD? The only orders.php I see in the AJAX mod is in the admin folder. I downloaded and looked at the MULTIADD and see there is orders.php in the includes\classes. Should I be using the MULTIADD mod instead? If so, is there a recommendation for installing the MULTIADD since I already have the AJAX mod installed. Thanks so much!