diff --git a/app/Http/Controllers/App/InventorySerialController.php b/app/Http/Controllers/App/InventorySerialController.php
index 18179d0..055954e 100644
--- a/app/Http/Controllers/App/InventorySerialController.php
+++ b/app/Http/Controllers/App/InventorySerialController.php
@@ -32,10 +32,13 @@ public function index(Inventory $inventario, Request $request)
 
         if ($request->has('warehouse_id')) {
             $query->where('warehouse_id', $request->warehouse_id);
-        } else {
+        } elseif ($request->boolean('main_warehouse')) {
             $mainWarehouse = Warehouse::where('is_main', true)->first();
             if ($mainWarehouse) {
-                $query->where('warehouse_id', $mainWarehouse->id);
+                $query->where(function ($q) use ($mainWarehouse) {
+                    $q->where('warehouse_id', $mainWarehouse->id)
+                      ->orWhereNull('warehouse_id');
+                });
             }
         }
 
diff --git a/app/Services/SaleService.php b/app/Services/SaleService.php
index 86a836d..95ee174 100644
--- a/app/Services/SaleService.php
+++ b/app/Services/SaleService.php
@@ -134,7 +134,7 @@ public function createSale(array $data)
                                 ->first();
 
                             if ($serial) {
-                                $serial->markAsSold($saleDetail->id);
+                                $serial->markAsSold($saleDetail->id, $serialWarehouseId);
                             } else {
                                 throw new \Exception("Serial {$serialNumber} no disponible en el almacén");
                             }
@@ -152,7 +152,7 @@ public function createSale(array $data)
                         }
 
                         foreach ($serials as $serial) {
-                            $serial->markAsSold($saleDetail->id);
+                            $serial->markAsSold($saleDetail->id, $serialWarehouseId);
                         }
                     }