diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index a800a25..8fe6dd8 100644
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -102,4 +102,20 @@ final class ApiController extends Controller
     public function apiExchangeExport(RequestAbstract $request, ResponseAbstract $response, $data = null) : void
     {
     }
+
+    /**
+     * Api method to handle file upload
+     *
+     * @param RequestAbstract  $request  Request
+     * @param ResponseAbstract $response Response
+     * @param mixed            $data     Generic data
+     *
+     * @return void
+     *
+     * @api
+     *
+     * @since 1.0.0
+     */
+    public function apiExchangeUpload(RequestAbstract $request, ResponseAbstract $response, $data = null): void
+    { }
 }
diff --git a/Interfaces/GSD/en.lang.php b/Interfaces/GSD/en.lang.php
index 1204fed..6a65786 100644
--- a/Interfaces/GSD/en.lang.php
+++ b/Interfaces/GSD/en.lang.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
diff --git a/Interfaces/OMS/Importer.php b/Interfaces/OMS/Importer.php
new file mode 100644
index 0000000..cd1a39a
--- /dev/null
+++ b/Interfaces/OMS/Importer.php
@@ -0,0 +1,221 @@
+<?php
+
+/**
+ * Orange Management
+ *
+ * PHP Version 7.4
+ *
+ * @package   Interfaces
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+
+declare(strict_types=1);
+
+namespace Modules\Exchange\Interfaces\OMS;
+
+use Modules\Accounting\Models\CostCenter;
+use Modules\Accounting\Models\CostCenterMapper;
+use Modules\Accounting\Models\CostObject;
+use Modules\Accounting\Models\CostObjectMapper;
+use Modules\Exchange\Interfaces\OMS\Model\ExchangeType;
+use Modules\Exchange\Models\ImporterAbstract;
+
+use phpOMS\DataStorage\Database\Connection\ConnectionFactory;
+use phpOMS\DataStorage\Database\DatabaseStatus;
+use phpOMS\Message\RequestAbstract;
+
+/**
+ * OMS import class
+ *
+ * @package Modules\Exchange\Models\Interfaces\OMS
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+final class Importer extends ImporterAbstract
+{
+    /**
+     * Import data from request
+     *
+     * @param RequestAbstract $request Request
+     *
+     * @return bool
+     *
+     * @since 1.0.0
+     */
+    public function importFromRequest(RequestAbstract $request): bool
+    {
+        $start = new \DateTime($request->getData('start') ?? 'now');
+        $end   = new \DateTime($request->getData('end') ?? 'now');
+
+        $type = (int) ($request->getData('type') ?? 0);
+
+        if ($type === ExchangeType::CUSTOMER) {
+            $this->importCustomer($start, $end);
+        } elseif ($type === ExchangeType::SUPPLIER) {
+            $this->importSupplier($start, $end);
+        } elseif ($type === ExchangeType::ACCOUNT) {
+            $this->importAccount($start, $end);
+        } elseif ($type === ExchangeType::COSTCENTER) {
+            $this->importCostCenter($start, $end);
+        } elseif ($type === ExchangeType::COSTOBJECT) {
+            $this->importCostObject($start, $end);
+        } elseif ($type === ExchangeType::ARTICLE) {
+            $this->importArticle($start, $end);
+        } elseif ($type === ExchangeType::INVOICE) {
+            $this->importInvoice($start, $end);
+        }
+
+        return true;
+    }
+
+    /**
+     * Import cost centers
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importCostCenter(\DateTime $start, \DateTime $end): void
+    {
+        $costCenters = OMSCostCenterMapper::getAll();
+
+        $obj = new CostCenter();
+        DataMapperAbstract::setConnection($this->local);
+
+        foreach ($costCenters as $cc) {
+            $obj->setCostCenter((int) $cc->getCostCenter());
+            $obj->setCostCenterName($cc->getDescription());
+
+            CostCenterMapper::create($obj);
+        }
+    }
+
+    /**
+     * Import cost objects
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importCostObject(\DateTime $start, \DateTime $end): void
+    {
+        $costObjects = OMSCostObjectMapper::getAll();
+
+        $obj = new CostObject();
+        DataMapperAbstract::setConnection($this->local);
+
+        foreach ($costObjects as $co) {
+            $obj->setCostObject((int) $co->getCostObject());
+            $obj->setCostObjectName($co->getDescription());
+
+            CostObjectMapper::create($obj);
+        }
+    }
+
+    /**
+     * Import addresses
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importAddress(\DateTime $start, \DateTime $end): void
+    {
+        while (($line = \fgetcsv($this->remote)) !== false) {
+
+        }
+    }
+
+    /**
+     * Import customers
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importCustomer(\DateTime $start, \DateTime $end): void
+    {
+
+    }
+
+    /**
+     * Import suppliers
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importSupplier(\DateTime $start, \DateTime $end): void
+    { }
+
+    /**
+     * Import accounts
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importAccount(\DateTime $start, \DateTime $end): void
+    { }
+
+    /**
+     * Import invoices
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importInvoice(\DateTime $start, \DateTime $end): void
+    { }
+
+    /**
+     * Import postings
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importPosting(\DateTime $start, \DateTime $end): void
+    { }
+
+    /**
+     * Import batch postings
+     *
+     * @param \DateTime $start Start time (inclusive)
+     * @param \DateTime $end   End time (inclusive)
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function importBatchPosting(\DateTime $start, \DateTime $end): void
+    { }
+}
diff --git a/Interfaces/OMS/en.lang.php b/Interfaces/OMS/en.lang.php
new file mode 100644
index 0000000..f248ad6
--- /dev/null
+++ b/Interfaces/OMS/en.lang.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * Orange Management
+ *
+ * PHP Version 7.4
+ *
+ * @package   Modules\Exchange
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+return [
+    'Account' => 'Account',
+    'Article' => 'Articls',
+    'CostCenter' => 'Cost Center',
+    'CostObject' => 'Cost Object',
+    'Customer' => 'Customer',
+    'Invoice' => 'Invoice',
+    'Options' => 'Options',
+    'Supplier' => 'Supplier',
+];
diff --git a/Interfaces/OMS/import.tpl.php b/Interfaces/OMS/import.tpl.php
new file mode 100644
index 0000000..95793fb
--- /dev/null
+++ b/Interfaces/OMS/import.tpl.php
@@ -0,0 +1,66 @@
+<?php
+
+use Modules\Exchange\Models\ExchangeType;
+?>
+<div class="tabview tab-2">
+    <div class="box wf-100 col-xs-12">
+        <ul class="tab-links">
+            <li><label for="c-tab-1"><?= $this->getHtml('File'); ?></label></li>
+            <li><label for="c-tab-2"><?= $this->getHtml('Database'); ?></label></li>
+        </ul>
+    </div>
+    <div class="tab-content">
+        <input type="radio" id="c-tab-1" name="tabular-2" checked>
+        <div class="tab">
+            <div class="row">
+                <div class="col-xs-12 col-md-6">
+                    <section class="box wf-100">
+                        <header>
+                            <h1><?= $this->getHtml('Import') ?> - Orange Management</h1>
+                        </header>
+
+                        <div class="inner">
+                            <form id="fImport" method="POST" action="<?= \phpOMS\Uri\UriFactory::build('{/api}admin/exchange/import/profile?{?}&exchange=GSD&csrf={$CSRF}'); ?>">
+                                <table class="layout wf-100" style="table-layout: fixed">
+                                    <tbody>
+                                        <tr>
+                                            <td><label for="iHost"><?= $this->getHtml('Host') ?></label>
+                                        <tr>
+                                            <td><input type="file" id="iFile" name="file" placeholder="&#xf040; <?= $this->getHtml('Host') ?>" data-uri="api/exchange/file" required><input type="hidden" id="iUploaded" name="uploaded">
+                                        <tr>
+                                            <td><?= $this->getHtml('Options') ?>
+                                        <tr>
+                                            <td>
+                                                <select>
+                                                    <option value="<?= ExchangeType::CUSTOMER; ?>"><?= $this->getHtml('Customer') ?>
+                                                    <option value="<?= ExchangeType::SUPPLIER; ?>"><?= $this->getHtml('Supplier') ?>
+                                                    <option value="<?= ExchangeType::ARTICLE; ?>"><?= $this->getHtml('Article') ?>
+                                                    <option value="<?= ExchangeType::BOOKING; ?>"><?= $this->getHtml('Booking') ?>
+                                                    <option value="<?= ExchangeType::ACCOUNT; ?>"><?= $this->getHtml('Account') ?>
+                                                    <option value="<?= ExchangeType::COSTCENTER; ?>"><?= $this->getHtml('CostCenter') ?>
+                                                    <option value="<?= ExchangeType::COSTOBJECT; ?>"><?= $this->getHtml('CostObject') ?>
+                                                    <option value="<?= ExchangeType::ADDRESS; ?>"><?= $this->getHtml('Address') ?>
+                                                </select>
+                                        <tr>
+                                            <td><label for="iStart"><?= $this->getHtml('Start') ?></label>
+                                        <tr>
+                                            <td><input type="datetime-local" id="iStart" name="start" value="<?= $this->printHtml((new \DateTime('NOW'))->format('Y-m-d\TH:i:s')); ?>">
+                                        <tr>
+                                            <td><label for="iEnd"><?= $this->getHtml('End') ?></label>
+                                        <tr>
+                                            <td><input type="datetime-local" id="iEnd" name="end" value="<?= $this->printHtml((new \DateTime('NOW'))->format('Y-m-d\TH:i:s')); ?>">
+                                        <tr>
+                                            <td>
+                                                <input type="submit" value="<?= $this->getHtml('Import'); ?>">
+                                </table>
+                            </form>
+                        </div>
+                    </section>
+                </div>
+            </div>
+        </div>
+        <input type="radio" id="c-tab-2" name="tabular-2">
+        <div class="tab">
+        </div>
+    </div>
+</div>
\ No newline at end of file
diff --git a/Interfaces/OMS/interface.json b/Interfaces/OMS/interface.json
new file mode 100644
index 0000000..5d8ec8e
--- /dev/null
+++ b/Interfaces/OMS/interface.json
@@ -0,0 +1,8 @@
+{
+    "name": "OMS",
+    "version": "1.0.0",
+    "website": "",
+    "path": "OMS",
+    "export": false,
+    "import": true
+}
\ No newline at end of file
diff --git a/Models/ExchangeType.php b/Models/ExchangeType.php
new file mode 100644
index 0000000..b3e2c4c
--- /dev/null
+++ b/Models/ExchangeType.php
@@ -0,0 +1,39 @@
+<?php
+
+/**
+ * Orange Management
+ *
+ * PHP Version 7.4
+ *
+ * @package   Modules\Exchange
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+
+declare(strict_types=1);
+
+namespace Modules\Exchange\Models;
+
+use phpOMS\Stdlib\Base\Enum;
+
+/**
+ * Exchange status enum.
+ *
+ * @package Modules\Exchange
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+abstract class ExchangeType extends Enum
+{
+    public const CUSTOMER    = 1;
+    public const SUPPLIER    = 2;
+    public const ARTICLE     = 3;
+    public const BOOKING     = 4;
+    public const ACCOUNT     = 5;
+    public const ADDRESS     = 6;
+    public const COSTCENTER  = 7;
+    public const COSTOBJECT  = 8;
+}
diff --git a/Theme/Backend/Lang/Navigation.en.lang.php b/Theme/Backend/Lang/Navigation.en.lang.php
index 032f374..87e1bf7 100644
--- a/Theme/Backend/Lang/Navigation.en.lang.php
+++ b/Theme/Backend/Lang/Navigation.en.lang.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
diff --git a/Theme/Backend/Lang/en.lang.php b/Theme/Backend/Lang/en.lang.php
index e6e31a0..880860f 100644
--- a/Theme/Backend/Lang/en.lang.php
+++ b/Theme/Backend/Lang/en.lang.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
@@ -16,6 +16,7 @@ return ['Exchange' => [
     'Exchange' => 'Exchange',
     'Export'   => 'Export',
     'Exports'  => 'Exports',
+    'File'     => 'File',
     'Host'     => 'Host',
     'Import'   => 'Import',
     'Imports'  => 'Imports',
diff --git a/Theme/Backend/exchange-dashboard.tpl.php b/Theme/Backend/exchange-dashboard.tpl.php
index 27af383..21b9d6a 100644
--- a/Theme/Backend/exchange-dashboard.tpl.php
+++ b/Theme/Backend/exchange-dashboard.tpl.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
diff --git a/Theme/Backend/exchange-export-list.tpl.php b/Theme/Backend/exchange-export-list.tpl.php
index 2a7abe5..2ed9fd5 100644
--- a/Theme/Backend/exchange-export-list.tpl.php
+++ b/Theme/Backend/exchange-export-list.tpl.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
diff --git a/Theme/Backend/exchange-export.tpl.php b/Theme/Backend/exchange-export.tpl.php
index 27af383..21b9d6a 100644
--- a/Theme/Backend/exchange-export.tpl.php
+++ b/Theme/Backend/exchange-export.tpl.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
diff --git a/Theme/Backend/exchange-import-list.tpl.php b/Theme/Backend/exchange-import-list.tpl.php
index 4180ce8..f0dd350 100644
--- a/Theme/Backend/exchange-import-list.tpl.php
+++ b/Theme/Backend/exchange-import-list.tpl.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0
diff --git a/Theme/Backend/exchange-import.tpl.php b/Theme/Backend/exchange-import.tpl.php
index f818139..b7200bb 100644
--- a/Theme/Backend/exchange-import.tpl.php
+++ b/Theme/Backend/exchange-import.tpl.php
@@ -4,7 +4,7 @@
  *
  * PHP Version 7.4
  *
- * @package   TBD
+ * @package   Modules\Exchange
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0