diff --git a/app/Http/Requests/App/SaleStoreRequest.php b/app/Http/Requests/App/SaleStoreRequest.php
index 1fae81b..570363d 100644
--- a/app/Http/Requests/App/SaleStoreRequest.php
+++ b/app/Http/Requests/App/SaleStoreRequest.php
@@ -49,9 +49,10 @@ public function rules(): array
             'items.*.quantity' => ['required', 'integer', 'min:1'],
             'items.*.warehouse_id' => ['nullable', 'exists:warehouses,id'],
 
-            // Seriales (para productos normales o componentes del bundle)
+            // Seriales
+            // Productos normales: ["SN-001", "SN-002"]
+            // Bundles: { inventory_id: ["SN-001", "SN-002"], ... }
             'items.*.serial_numbers' => ['nullable', 'array'],
-            'items.*.serial_numbers.*' => ['nullable', 'array'], // Para bundles: {inventory_id: [serials]}
     ];
     }