Update

app/Endpoint/Api/Http/Controllers/Dealer/ManageSubsidyLogController.php

@@ -22,7 +22,7 @@ class ManageSubsidyLogController extends Controller
 
         $perPage = Paginator::resolvePerPage('per_page', 20, 50);
 
-        $manageSubsidyLogs = DealerManageSubsidyLog::with(['product'])
+        $manageSubsidyLogs = DealerManageSubsidyLog::with(['product', 'order'])
                                 ->when($isComplted, function ($query) {
                                     $tz = now();
 

app/Endpoint/Api/Http/Resources/Dealer/DealerManageSubsidyLogResource.php

@@ -15,6 +15,7 @@ class DealerManageSubsidyLogResource extends JsonResource
     public function toArray($request)
     {
         return [
+            'order' => OrderSimpleResource::make($this->whenLoaded('order')),
             'product' => ProductSimpleResource::make($this->whenLoaded('product')),
             'sales_volume' => $this->sales_volume,
             'total_amount' => $this->total_amount,