Information for those merchants who use Prestashop 1.7.5.x Implement the code Go to the directory /controllers/front/ and open the file OrderConfirmationController.php. Replace following code bloc: this->context->smarty->assign(array(     ‘HOOK_ORDER_CONFIRMATION’ => $this->displayOrderConfirmation($order),     ‘HOOK_PAYMENT_RETURN’ => $this->displayPaymentReturn($order),     ‘order’ => $presentedOrder,     ‘register_form’ => $register_form, )); With following code bloc: /* Kelkoo Sales Tracking */ $order = new … Continue reading PrestaShop 1.7.5.x integration of Kelkoo Sales Tracking