Customer number: 0

I will try to reproduce it for sure!

But I can see 2-3 payments that have gone through without any problems.

I don't see why the payment gateway would be the issue as no customer ID is being created.

I have 2-3 payments that have been completed with customer ID and everything and payment received at Moneris and I also have 2-3 orders that have been abandoned in Ubercart but have been completed in Moneris???

Many thanks!

Thank you for your suggestion, I will give this a try and report back!

The Moneris payment gateway module that is being used is one that was ported from Commerce to Ubercart. It works well but I just noticed this problem. It also relies on a callback to confirm the payment. If "some" paypal orders had this same issue then the dev version should fix it.

Here is the code for Callback of a completed order :

/**
 * Callback for completed order.
 */
function uc_monerishpp_complete($cart_id = 0) {
  $output = '';
  $comment = '';
  // Passed through Moneris.
  $order_id = $_POST['rvar_order_id'];
  $order = uc_order_load($order_id);

  if ($order === FALSE || uc_order_status_data($order->order_status, 'state') != 'in_checkout') {
    return variable_get('uc_monerishpp_order_error_msg', '');
  }
  if ((int) $_POST['response_code'] < '50') {
    // Transaction approved.
    $comment = t('Dear !cardholder.  Your order #!order was processed.  Your !type in the amount of !amount was processed on !date at !time.  Authorization #!auth.  Response code !resp. ISO code !iso.  Reference #!refnum.  !message.',
      array(
        '!type' => check_plain($_POST['trans_name']),
        '!order' => check_plain($_POST['rvar_order_id']),
        '!amount' => check_plain($_POST['charge_total']),
        '!date' => check_plain($_POST['date_stamp']),
        '!time' => check_plain($_POST['time_stamp']),
        '!auth' => check_plain($_POST['bank_approval_code']),
        '!resp' => check_plain($_POST['response_code']),
        '!iso' => check_plain($_POST['iso_code']),
        '!message' => check_plain($_POST['message']),
        '!refnum' => check_plain($_POST['bank_transaction_id']),
        '!cardholder' => check_plain($_POST['cardholder']),
      )
    );
    uc_payment_enter($order->order_id, 'monerishpp', $_POST['charge_total'], 0, NULL, $comment);
    $output = uc_cart_complete_sale($order, TRUE);
    uc_cart_empty($cart_id);
  }
  else {
    drupal_set_message(t('Credit card payment declined.'));
    uc_order_comment_save($order->order_id, 0, t('Credit card payment declined at Moneris.'), 'admin');
  }
  $message = $output['#message'];
  $message .= '<br/><br/>' . $comment;
  $output['#message'] = $message;
  return $output;
}

Many thanks!

Thanks for you help everyone!

Upgrading to the Dev version did fix the issue.

However, after some extensive research, I'm not 100% sure that this was an Ubercart/Moneris payment module problem. I believe Moneris might of had some issues during these transactions and was not returning the correct response code. This is my conclusion as I cant reproduce the problem on the Dev or Recommended release version anymore.

Many thanks!