diff --git a/db/README.md b/db/README.md
index dba14e9..70f534e 100644
--- a/db/README.md
+++ b/db/README.md
@@ -17,6 +17,7 @@
 13. `db/migrations/0017_manufacturer_lot_traceability.sql`
 14. `db/migrations/0018_shopify_delta_sync_state.sql`
 15. `db/migrations/0019_allow_multiple_open_stock_lots.sql`
+16. `db/migrations/0020_include_stock_adjustments_in_balance.sql`
 
 ## Beispielausfuehrung
 
diff --git a/db/migrations/0020_include_stock_adjustments_in_balance.sql b/db/migrations/0020_include_stock_adjustments_in_balance.sql
new file mode 100644
index 0000000..5b745f2
--- /dev/null
+++ b/db/migrations/0020_include_stock_adjustments_in_balance.sql
@@ -0,0 +1,22 @@
+BEGIN;
+
+CREATE OR REPLACE VIEW v_stock_lot_balance AS
+SELECT
+  sl.id AS stock_lot_id,
+  sl.product_id,
+  COALESCE(SUM(CASE WHEN sm.move_type = 'in' THEN sm.qty ELSE 0 END), 0) AS qty_in,
+  COALESCE(SUM(CASE WHEN sm.move_type = 'out' THEN sm.qty ELSE 0 END), 0) AS qty_out,
+  COALESCE(SUM(
+    CASE
+      WHEN sm.move_type = 'in' THEN sm.qty
+      WHEN sm.move_type = 'out' THEN -sm.qty
+      WHEN sm.move_type = 'adjustment' AND sm.to_location_id IS NOT NULL AND sm.from_location_id IS NULL THEN sm.qty
+      WHEN sm.move_type = 'adjustment' AND sm.from_location_id IS NOT NULL AND sm.to_location_id IS NULL THEN -sm.qty
+      ELSE 0
+    END
+  ), 0) AS qty_net
+FROM stock_lot sl
+LEFT JOIN stock_move sm ON sm.lot_id = sl.id
+GROUP BY sl.id, sl.product_id;
+
+COMMIT;
diff --git a/modules/erp/lager/service.php b/modules/erp/lager/service.php
index 220e598..1e6038a 100644
--- a/modules/erp/lager/service.php
+++ b/modules/erp/lager/service.php
@@ -343,6 +343,8 @@ function update_stock_lot_traceability(
                 "SELECT COALESCE(SUM(CASE
                     WHEN move_type = 'in' THEN qty
                     WHEN move_type = 'out' THEN -qty
+                    WHEN move_type = 'adjustment' AND to_location_id IS NOT NULL AND from_location_id IS NULL THEN qty
+                    WHEN move_type = 'adjustment' AND from_location_id IS NOT NULL AND to_location_id IS NULL THEN -qty
                     ELSE 0
                 END), 0)
                  FROM stock_move
@@ -351,8 +353,8 @@ function update_stock_lot_traceability(
             $balanceStmt->execute([':lot_id' => $lotId]);
             $quantityDelta = $targetQty - (float) $balanceStmt->fetchColumn();
             $receiptQty = $quantityDelta > 0 ? $quantityDelta : 0.0;
-            $outQty = $quantityDelta < 0 ? abs($quantityDelta) : 0.0;
-            $adjustmentQty = 0.0;
+            $outQty = 0.0;
+            $adjustmentQty = $quantityDelta < 0 ? $quantityDelta : 0.0;
         }
 
         if (($adjustmentQty !== 0.0 || $outQty > 0) && (string) $before['status'] !== 'current' && $targetQty === null) {