diff --git a/app/Services/InventoryMovementService.php b/app/Services/InventoryMovementService.php
index 9edf9fa..429029f 100644
--- a/app/Services/InventoryMovementService.php
+++ b/app/Services/InventoryMovementService.php
@@ -211,8 +211,11 @@ public function bulkEntry(array $data): array
                     'invoice_reference' => $data['invoice_reference'],
                 ]);
 
+                // Solo crear seriales si el producto los requiere (track_serials Y unidad sin decimales)
+                $requiresSerials = $inventory->track_serials && ! $inventory->unitOfMeasure?->allows_decimals;
+
                 // Crear seriales DESPUÉS (para asignar movement_id)
-                if (! empty($serialNumbers)) {
+                if ($requiresSerials && ! empty($serialNumbers)) {
                     $serials = [];
                     foreach ($serialNumbers as $serialNumber) {
                         $serials[] = [
@@ -239,7 +242,7 @@ public function bulkEntry(array $data): array
                     $this->updateWarehouseStock($inventory->id, $warehouse->id, $quantity);
                 }
 
-                $movements[] = $movement->load(['inventory', 'warehouseTo']);
+                $movements[] = $movement->load(['inventory', 'warehouseTo', 'serials']);
             }
 
             return $movements;
@@ -351,7 +354,7 @@ public function bulkExit(array $data): array
                     ]);
                 }
 
-                $movements[] = $movement->load(['inventory', 'warehouseFrom']);
+                $movements[] = $movement->load(['inventory', 'warehouseFrom', 'exitedSerials']);
             }
 
             return $movements;
@@ -467,7 +470,7 @@ public function bulkTransfer(array $data): array
                     ]);
                 }
 
-                $movements[] = $movement->load(['inventory', 'warehouseFrom', 'warehouseTo']);
+                $movements[] = $movement->load(['inventory', 'warehouseFrom', 'warehouseTo', 'transferredSerials']);
             }
 
             return $movements;