diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index 8fe6dd8..3dc19b1 100644
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -19,6 +19,8 @@ use Modules\Exchange\Models\InterfaceManagerMapper;
 use phpOMS\Message\NotificationLevel;
 use phpOMS\Message\RequestAbstract;
 use phpOMS\Message\ResponseAbstract;
+use Modules\Media\Models\UploadFile;
+use phpOMS\System\File\Local\Directory;
 
 /**
  * Exchange controller class.
@@ -83,6 +85,8 @@ final class ApiController extends Controller
             }
         }
 
+        Directory::delete(__DIR__ . '/../tmp/');
+
         return false;
     }
 
@@ -117,5 +121,12 @@ final class ApiController extends Controller
      * @since 1.0.0
      */
     public function apiExchangeUpload(RequestAbstract $request, ResponseAbstract $response, $data = null): void
-    { }
+    {
+        Directory::delete(__DIR__ . '/../tmp/');
+
+        $upload = new UploadFile();
+        $upload->setOutputDir(__DIR__ . '/../tmp/');
+
+        $upload->upload($request->getFiles());
+    }
 }
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 84b26b5..7373ff6 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -32,6 +32,18 @@ use phpOMS\Views\View;
 final class BackendController extends Controller
 {
 
+    /**
+     * Routing end-point for application behaviour.
+     *
+     * @param RequestAbstract  $request  Request
+     * @param ResponseAbstract $response Response
+     * @param mixed            $data     Generic data
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     * @codeCoverageIgnore
+     */
     public function viewExchangeDashboard(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
     {
         $view = new View($this->app, $request, $response);
diff --git a/Interfaces/OMS/Importer.php b/Interfaces/OMS/Importer.php
index cd1a39a..b47f56a 100644
--- a/Interfaces/OMS/Importer.php
+++ b/Interfaces/OMS/Importer.php
@@ -1,5 +1,4 @@
 <?php
-
 /**
  * Orange Management
  *
@@ -26,6 +25,7 @@ use Modules\Exchange\Models\ImporterAbstract;
 use phpOMS\DataStorage\Database\Connection\ConnectionFactory;
 use phpOMS\DataStorage\Database\DatabaseStatus;
 use phpOMS\Message\RequestAbstract;
+use Modules\ClientManagement\Models\ClientMapper;
 
 /**
  * OMS import class
@@ -52,6 +52,7 @@ final class Importer extends ImporterAbstract
         $end   = new \DateTime($request->getData('end') ?? 'now');
 
         $type = (int) ($request->getData('type') ?? 0);
+        $source = (int) ($request->getData('source') ?? 0);
 
         if ($type === ExchangeType::CUSTOMER) {
             $this->importCustomer($start, $end);
@@ -151,7 +152,38 @@ final class Importer extends ImporterAbstract
      */
     public function importCustomer(\DateTime $start, \DateTime $end): void
     {
+        $euTIN = CustomerIdTypeMapper::getByType(CustomerIdType::EU_TIN);
+        $gerTIN = CustomerIdTypeMapper::getByType(CustomerIdType::GER_TIN);
 
+        while (($line = \fgetcsv($this->remote)) !== false) {
+            $customer = new Client();
+
+            $customer->setNumber($line[0]);
+            $customer->getProfile()->getAccount()->setName1($line[1]);
+            $customer->getProfile()->getAccount()->setName2($line[2]);
+            $customer->getProfile()->getAccount()->setName3($line[3]);
+            //$customer->addEmail(EmailType::BUSINESS, $line[4]);
+            //$customer->addPhone(PhoneType::BUSINESS, $line[5]);
+            //$customer->addWebsite(PhoneType::BUSINESS, $line[5]);
+
+            $address = new Address();
+            $customer->setDefaultDeliveryAddress($address);
+            $customer->setDefaultInvoiceAddress($address);
+
+            $customer->setDefaultPaymentTerms(new PaymentTerms());
+            $customer->setCreditLimit($line[12]);
+            $customer->setStatus($line[9]);
+            $customer->setInfo($line[9]);
+            $customer->setAdvertisementMaterial($line[13]);
+            $customer->setSalesRep();
+            $customer->setType();
+            $customer->addPartner();
+
+            $customer->addId($euTIN, $line[10]);
+            $customer->addId($gerTIN, $line[11]);
+
+            ClientMapper::create($customer);
+        }
     }
 
     /**
diff --git a/Models/ExchangeType.php b/Models/ExchangeType.php
index b3e2c4c..2ebc269 100644
--- a/Models/ExchangeType.php
+++ b/Models/ExchangeType.php
@@ -5,7 +5,7 @@
  *
  * PHP Version 7.4
  *
- * @package   Modules\Exchange
+ * @package   Modules\Exchange\Models
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
@@ -21,7 +21,7 @@ use phpOMS\Stdlib\Base\Enum;
 /**
  * Exchange status enum.
  *
- * @package Modules\Exchange
+ * @package Modules\Exchange\Models
  * @license OMS License 1.0
  * @link    https://orange-management.org
  * @since   1.0.0
diff --git a/Models/InterfaceManagerMapper.php b/Models/InterfaceManagerMapper.php
index 75a169f..7a4aedc 100644
--- a/Models/InterfaceManagerMapper.php
+++ b/Models/InterfaceManagerMapper.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   Modules\Exchange
+ * @package   Modules\Exchange\Models
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
@@ -19,7 +19,7 @@ use phpOMS\DataStorage\Database\DataMapperAbstract;
 /**
  * Mapper class.
  *
- * @package Modules\Exchange
+ * @package Modules\Exchange\Models
  * @license OMS License 1.0
  * @link    https://orange-management.org
  * @since   1.0.0
diff --git a/Models/PermissionState.php b/Models/PermissionState.php
index d683444..3ef3928 100644
--- a/Models/PermissionState.php
+++ b/Models/PermissionState.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   Modules\Exchange
+ * @package   Modules\Exchange\Models
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
@@ -19,7 +19,7 @@ use phpOMS\Stdlib\Base\Enum;
 /**
  * Permision state enum.
  *
- * @package Modules\Exchange
+ * @package Modules\Exchange\Models
  * @license OMS License 1.0
  * @link    https://orange-management.org
  * @since   1.0.0