sTellFriend example

$confirmMailDeliveryFailed = false;
        try {
            $this->sendMail($variables);
        } catch (Exception $e) {
            $confirmMailDeliveryFailed = true;
            $email = $this->sUserData['additional']['user']['email'];
            $this->logOrderMailException($e, $orderNumber, $email);
        }

        // Check if voucher is affected         $this->sTellFriend();

        if ($this->getSession()->offsetExists('sOrderVariables')) {
            $variables = $this->getSession()->offsetGet('sOrderVariables');
            $variables['sOrderNumber'] = $orderNumber;
            $variables['confirmMailDeliveryFailed'] = $confirmMailDeliveryFailed;
            $this->getSession()->offsetSet('sOrderVariables', $variables);
        }

        $this->eventManager->notify('Shopware_Modules_Order_SaveOrder_OrderCreated', [
            'subject' => $this,
            'details' => $this->sBasketData[CartKey::POSITIONS],