diff --git a/Admin/Installer.php b/Admin/Installer.php
index b626b62..3f2aaf8 100755
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -102,9 +102,6 @@ final class Installer extends InstallerAbstract
         /** @var \Modules\WarehouseManagement\Controller\ApiStockTypeController $module */
         $module = $app->moduleManager->getModuleInstance('WarehouseManagement', 'ApiStockType');
 
-        // @todo allow multiple alternative stock templates
-        // @todo implement ordering of templates
-
         foreach ($types as $type) {
             $response = new HttpResponse();
             $request  = new HttpRequest();
diff --git a/Models/Stock.php b/Models/Stock.php
index 839dbf3..647559c 100755
--- a/Models/Stock.php
+++ b/Models/Stock.php
@@ -25,6 +25,11 @@ use phpOMS\Stdlib\Base\Address;
  * @license OMS License 2.0
  * @link    https://jingga.app
  * @since   1.0.0
+ *
+ * @todo Add attributes for stock
+ *      This is important for things like warehousing cost ratio (Lagerkostensatz)
+ *          HR + energy + insurance + interest rate + machinery (e.g. depreciation) + leasing + cleaning
+ *          + security + maintenance + ...
  */
 class Stock
 {
diff --git a/Models/StockMapper.php b/Models/StockMapper.php
index dd71bb5..47be062 100755
--- a/Models/StockMapper.php
+++ b/Models/StockMapper.php
@@ -16,8 +16,11 @@ namespace Modules\WarehouseManagement\Models;
 
 use Modules\Admin\Models\AddressMapper;
 use Modules\ClientManagement\Models\ClientMapper;
+use Modules\ItemManagement\Models\Item;
+use Modules\ItemManagement\Models\StockIdentifierType;
 use Modules\SupplierManagement\Models\SupplierMapper;
 use phpOMS\DataStorage\Database\Mapper\DataMapperFactory;
+use phpOMS\DataStorage\Database\Query\Builder;
 
 /**
  * WarehouseManagement mapper class.
@@ -93,4 +96,72 @@ final class StockMapper extends DataMapperFactory
      * @since 1.0.0
      */
     public const PRIMARYFIELD = 'warehousemgmt_stock_id';
+
+    public static function getStockDistribution(array $items) : array
+    {
+        $dists    = [];
+        $reserved = [];
+        $ordered  = [];
+
+        $itemIdsString = \implode(',', $items);
+
+        // @todo only select sales stock. Therefore we need a place to define the sales stock(s)
+        $temp = StockDistributionMapper::getAll()
+            ->where('item', $items, 'IN')
+            ->execute();
+
+        foreach ($temp as $t) {
+            if (!isset($dists[$t->item])) {
+                $dists[$t->item] = [];
+            }
+
+            // @todo These numbers might need adjustments for delivery notes/invoices depending on
+            // how we implement them in the warehouse management (maybe flag them in the transaction protocol as reserved?)
+            // also remember the SD issue where delivery notes can be technically still in stock -> stock value still belongs to company
+            // solution: "just" do a soft adjust of the available numbers?! but don't change the actual stock in the db
+            // the SD solution where actually delivered delivery notes can be adjusted after "archiving" will not be allowed
+            // to allow them to see what happened with such a delivery note maybe we can implement a view shows how many of the items are
+            // actually still outstanding. This shouldn't be anything special since we need importing of delivery notes anyways and marking
+            // old delivery note elements in a way to show which line items or even sub-line items got invoiced/returned etc.
+            $dists[$t->item][] = $t;
+        }
+
+        $stockIdentifier = StockIdentifierType::NONE;
+
+        $sql = <<<SQL
+        SELECT billing_bill_element.billing_bill_element_item,
+            billing_type.billing_type_name,
+            SUM(billing_bill_element.billing_bill_element_quantity) AS quantity
+        FROM billing_bill_element
+        LEFT JOIN itemmgmt_item ON billing_bill_element.billing_bill_element_item = itemmgmt_item.itemmgmt_item_id
+        LEFT JOIN billing_bill ON billing_bill_element.billing_bill_element_bill = billing_bill.billing_bill_id
+        LEFT JOIN billing_type ON billing_bill.billing_bill_type = billing_type.billing_type_id
+        WHERE billing_bill_element.billing_bill_element_item IN ({$itemIdsString})
+            AND itemmgmt_item.itemmgmt_item_stockidentifier != {$stockIdentifier}
+            AND billing_type.billing_type_name IN ('sales_order_confirmation', 'purchase_order')
+        GROUP BY billing_bill_element.billing_bill_element_item, billing_type.billing_type_name;
+        SQL;
+
+        $query   = new Builder(self::$db);
+        $results = $query->raw($sql)->execute()->fetchAll(\PDO::FETCH_ASSOC);
+
+        foreach ($results as $result) {
+            if (!isset($reserved[(int) $result['billing_bill_element_item']])) {
+                $reserved[(int) $result['billing_bill_element_item']] = 0;
+                $ordered[(int) $result['billing_bill_element_item']]  = 0;
+            }
+
+            if ($result['billing_type_name'] === 'sales_order_confirmation') {
+                $reserved[(int) $result['billing_bill_element_item']] += (int) $result['quantity'];
+            } else {
+                $ordered[(int) $result['billing_bill_element_item']] += (int) $result['quantity'];
+            }
+        }
+
+        return [
+            'dists'    => $dists,
+            'reserved' => $reserved,
+            'ordered'  => $ordered,
+        ];
+    }
 }