diff --git a/src/Repository/OrderRepository.php b/src/Repository/OrderRepository.php
index 82d43d1f4..bca48c021 100644
--- a/src/Repository/OrderRepository.php
+++ b/src/Repository/OrderRepository.php
@@ -36,4 +36,16 @@ public function findOneByCartId($id_cart)
     {
         return $this->findOneBy(['id_cart' => (int) $id_cart]);
     }
+
+    /**
+     * @param int $id_cart
+     *
+     * @return \PrestaShopCollection
+     *
+     * @throws \PrestaShopException
+     */
+    public function findAllByCartId($id_cart)
+    {
+        return $this->findAllBy(['id_cart' => (int) $id_cart]);
+    }
 }
diff --git a/src/Service/OrderStatusService.php b/src/Service/OrderStatusService.php
index bfa1dab0a..47fe0d11c 100644
--- a/src/Service/OrderStatusService.php
+++ b/src/Service/OrderStatusService.php
@@ -16,6 +16,7 @@
 use Mollie\Api\Types\OrderStatus;
 use Mollie\Api\Types\PaymentStatus;
 use Mollie\Config\Config;
+use Mollie\Repository\OrderRepository;
 use Mollie\Utility\OrderStatusUtility;
 use Order;
 use OrderDetail;
@@ -36,9 +37,12 @@ class OrderStatusService
      */
     private $mailService;
 
-    public function __construct(MailService $mailService)
+    private $orderRepository;
+
+    public function __construct(MailService $mailService, OrderRepository $orderRepository)
     {
         $this->mailService = $mailService;
+        $this->orderRepository = $orderRepository;
     }
 
     /**
@@ -102,20 +106,41 @@ public function setOrderStatus($orderId, $statusId, $useExistingPayment = null,
             $useExistingPayment = !$order->hasInvoice();
         }
 
-        $history = new OrderHistory();
-        $history->id_order = $order->id;
-        $history->changeIdOrderState($statusId, $orderId, $useExistingPayment);
+        $orders = $this->orderRepository->findAllByCartId($order->id_cart);
+        if (count($orders) > 1) {
+            foreach ($orders as $subOrder) {
+                $history = new OrderHistory();
+                $history->id_order = $subOrder->id;
+                $history->changeIdOrderState($statusId, $subOrder->id, $useExistingPayment);
 
-        $status = OrderStatusUtility::transformPaymentStatusToPaid($status, Config::STATUS_PAID_ON_BACKORDER);
+                $status = OrderStatusUtility::transformPaymentStatusToPaid($status, Config::STATUS_PAID_ON_BACKORDER);
 
-        if ($this->checkIfOrderConfNeedsToBeSend($statusId)) {
-            $this->mailService->sendOrderConfMail($order, $statusId);
-        }
+                if ($this->checkIfOrderConfNeedsToBeSend($statusId)) {
+                    $this->mailService->sendOrderConfMail($subOrder, $statusId);
+                }
 
-        if ('0' === Configuration::get('MOLLIE_MAIL_WHEN_' . Tools::strtoupper($status))) {
-            $history->add();
+                if ('0' === Configuration::get('MOLLIE_MAIL_WHEN_' . Tools::strtoupper($status))) {
+                    $history->add();
+                } else {
+                    $history->addWithemail(true, $templateVars);
+                }
+            }
         } else {
-            $history->addWithemail(true, $templateVars);
+            $history = new OrderHistory();
+            $history->id_order = $order->id;
+            $history->changeIdOrderState($statusId, $orderId, $useExistingPayment);
+
+            $status = OrderStatusUtility::transformPaymentStatusToPaid($status, Config::STATUS_PAID_ON_BACKORDER);
+
+            if ($this->checkIfOrderConfNeedsToBeSend($statusId)) {
+                $this->mailService->sendOrderConfMail($order, $statusId);
+            }
+
+            if ('0' === Configuration::get('MOLLIE_MAIL_WHEN_' . Tools::strtoupper($status))) {
+                $history->add();
+            } else {
+                $history->addWithemail(true, $templateVars);
+            }
         }
     }