diff --git a/app/Http/Requests/App/ReturnStoreRequest.php b/app/Http/Requests/App/ReturnStoreRequest.php
index 947af00..350de1f 100644
--- a/app/Http/Requests/App/ReturnStoreRequest.php
+++ b/app/Http/Requests/App/ReturnStoreRequest.php
@@ -111,8 +111,8 @@ public function withValidator($validator)
                     );
                 }
 
-                // Validar seriales si fueron especificados
-                if (isset($item['serial_numbers'])) {
+                // Validar seriales solo si se proporcionaron (array vacío = sin serials)
+                if (!empty($item['serial_numbers'])) {
                     if (count($item['serial_numbers']) !== $item['quantity_returned']) {
                         $validator->errors()->add(
                             "items.{$index}.serial_numbers",
diff --git a/app/Models/InventorySerial.php b/app/Models/InventorySerial.php
index a7d4ec3..7fef2ad 100644
--- a/app/Models/InventorySerial.php
+++ b/app/Models/InventorySerial.php
@@ -87,7 +87,6 @@ public function restoreFromReturn(): void
         $this->update([
             'status' => 'disponible',
             'sale_detail_id' => null,
-            'return_detail_id' => null,
         ]);
     }
 
diff --git a/app/Services/ReturnService.php b/app/Services/ReturnService.php
index 80d2699..2c66766 100644
--- a/app/Services/ReturnService.php
+++ b/app/Services/ReturnService.php
@@ -113,7 +113,7 @@ public function createReturn(array $data): Returns
 
                 if ($inventory->track_serials) {
                     // Validación de cantidad de seriales
-                    if (isset($item['serial_numbers']) && is_array($item['serial_numbers'])) {
+                    if (!empty($item['serial_numbers'])) {
                         if (count($item['serial_numbers']) != $item['quantity_returned']) {
                             throw new \Exception(
                                 "La cantidad de seriales proporcionados no coincide con la cantidad a devolver " .
@@ -123,7 +123,7 @@ public function createReturn(array $data): Returns
                     }
 
                     // Gestionar seriales
-                    if (isset($item['serial_numbers']) && is_array($item['serial_numbers'])) {
+                    if (!empty($item['serial_numbers'])) {
                         // Seriales específicos proporcionados
                         foreach ($item['serial_numbers'] as $serialNumber) {
                             $serial = InventorySerial::where('serial_number', $serialNumber)