diff --git a/app/Http/Controllers/Supplier/LossRecordController.php b/app/Http/Controllers/Supplier/LossRecordController.php
index deab2c5..70b1e77 100644
--- a/app/Http/Controllers/Supplier/LossRecordController.php
+++ b/app/Http/Controllers/Supplier/LossRecordController.php
@@ -76,7 +76,7 @@ class LossRecordController extends Controller
             $lossRecords->external_sku_id = $allParams['external_sku_id'];
             $lossRecords->num = $allParams['num'];
             $lossRecords->cost = $allParams['cost'];
-            $lossRecords->date = $today;
+            $lossRecords->date = $allParams['date'] ?? $today;
             $lossRecords->buyer_user_id = $allParams['buyer_user_id'] ?? ($buyerUserId ?? 0);
             $lossRecords->buyer_name = $allParams['buyer_name'] ?? '';
             $lossRecords->reason = $allParams['reason'] ?? '';
@@ -134,7 +134,7 @@ class LossRecordController extends Controller
 
     public function lossBatchStore(Request $request)
     {
-        \Illuminate\Support\Facades\Log::info("test",(array)$request->all());
+        \Illuminate\Support\Facades\Log::info("test", (array)$request->all());
         $validator = Validator::make($request->all(), [
             'lossOrders' => 'required|array',
             'lossOrders.*.external_sku_id' => 'required|string',
diff --git a/app/Http/Controllers/Supplier/PurchaseRecordController.php b/app/Http/Controllers/Supplier/PurchaseRecordController.php
index b99140a..6f88d1f 100644
--- a/app/Http/Controllers/Supplier/PurchaseRecordController.php
+++ b/app/Http/Controllers/Supplier/PurchaseRecordController.php
@@ -5,6 +5,7 @@ namespace App\Http\Controllers\Supplier;
 use App\Events\BatchStockUpdateEvent;
 use App\Http\Controllers\Controller;
 use App\Http\Enum\ExcelKeyEnum;
+use App\Http\Enum\TargetTypeEnum;
 use App\Http\Resources\GoodsSkuResource;
 use App\Http\Resources\RolesResource;
 use App\Imports\PurchaseImport;
@@ -98,7 +99,7 @@ class PurchaseRecordController extends Controller
             }
             $purchaseRecords->save();
 
-            $updateIds = GoodSkuService::computeSkuStock($goodsSku->toArray(), $allParams);
+            $updateIds = GoodSkuService::computeSkuStock($goodsSku->toArray(), $allParams,TargetTypeEnum::PURCHASE);
             event(new BatchStockUpdateEvent($updateIds));
         } else {
             $this->res = [
@@ -200,7 +201,7 @@ class PurchaseRecordController extends Controller
             $purchaseRecords->expire_time = Carbon::now()->addDays($expireDay)->toDateTimeString();
             $purchaseRecords->save();
 
-            $updateIds = GoodSkuService::computeSkuStock($goodsSkuItem, $v);
+            $updateIds = GoodSkuService::computeSkuStock($goodsSkuItem, $v,TargetTypeEnum::PURCHASE);
 
         }
         //如果是組合商品会触发重算逻辑
diff --git a/app/Http/Enum/TargetTypeEnum.php b/app/Http/Enum/TargetTypeEnum.php
new file mode 100644
index 0000000..95a1973
--- /dev/null
+++ b/app/Http/Enum/TargetTypeEnum.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Http\Enum;
+
+
+class TargetTypeEnum
+{
+
+    const  PURCHASE = "purchase";
+
+    const  LOSS = "loss";
+
+}
\ No newline at end of file
diff --git a/app/Imports/PurchaseImport.php b/app/Imports/PurchaseImport.php
index 3df39e2..c8c5954 100644
--- a/app/Imports/PurchaseImport.php
+++ b/app/Imports/PurchaseImport.php
@@ -3,6 +3,7 @@
 namespace App\Imports;
 
 use App\Events\BatchStockUpdateEvent;
+use App\Http\Enum\TargetTypeEnum;
 use App\Jobs\SyncCostToMiaoXuan;
 use App\Models\DailyStockRecord;
 use App\Models\GoodsSku;
@@ -69,8 +70,8 @@ class PurchaseImport implements ToArray, SkipsEmptyRows
                 $purchaseRecords->num = $row[2];
                 $purchaseRecords->cost = $row[3];
                 $purchaseRecords->date = $today;
-                if(!empty($row[6])){
-                    $purchaseRecords->date = DateTimeUtils::excelUploadDateToString($row[6],$today);
+                if (!empty($row[6])) {
+                    $purchaseRecords->date = DateTimeUtils::excelUploadDateToString($row[6], $today);
                 }
                 $purchaseRecords->buyer_user_id = $buyerUserIdKeyByNameMap[$row[4]] ?? 0;
                 $purchaseRecords->buyer_name = $row[4] ?? '';
@@ -79,7 +80,7 @@ class PurchaseImport implements ToArray, SkipsEmptyRows
                 $purchaseRecords->expire_time = Carbon::now()->addDays($expireDay)->toDateTimeString();
                 $purchaseRecords->save();
 
-                $updateIds += GoodSkuService::computeSkuStock($goodsSkuItem, ["num" => $row[2], 'cost' => $row[3]]);
+                $updateIds += GoodSkuService::computeSkuStock($goodsSkuItem, ["num" => $row[2], 'cost' => $row[3]], TargetTypeEnum::PURCHASE);
             }
             Log::info("采购导入内容:", $collection);
             // 批量更新
diff --git a/app/Services/GoodSku/GoodSkuService.php b/app/Services/GoodSku/GoodSkuService.php
index 3fef0ab..edce904 100644
--- a/app/Services/GoodSku/GoodSkuService.php
+++ b/app/Services/GoodSku/GoodSkuService.php
@@ -3,6 +3,7 @@
 namespace App\Services\GoodSku;
 
 use App\Events\BatchStockUpdateEvent;
+use App\Http\Enum\TargetTypeEnum;
 use App\Models\BusinessOrderItem;
 use App\Models\CombinationGood;
 use App\Models\DailyStockRecord;
@@ -112,7 +113,7 @@ class GoodSkuService
     }
 
 
-    public static function computeSkuStock(array $goodsSkuItem, array $v)
+    public static function computeSkuStock(array $goodsSkuItem, array $v, $targetType = TargetTypeEnum::LOSS)
     {
         $updateIds = [];
         Log::info("库存更新前完整商品信息", $goodsSkuItem);
@@ -122,14 +123,15 @@ class GoodSkuService
             $updateParam = [
                 'stock' => $goodsSkuItem['stock'] + $v['num'],
                 'sale_stock' => $goodsSkuItem['sale_stock'] + $v['num'],
-                'cost' => $v['cost'],
             ];
+            if ($targetType == TargetTypeEnum::PURCHASE) {
+                $updateParam['cost'] = $v['cost'];
+            }
             GoodsSku::query()->where('external_sku_id', "=", $goodsSkuItem['external_sku_id'])
                 ->update($updateParam);
             $updateIds[] = $goodsSkuItem['id'];
             $updateParams[] = $updateParam;
         } else {
-            //组合商品 这里需要重新获取 减少更新丢失概率
             $combinationGood = CombinationGood::query()->with('goodsSkuItem:id,stock,sale_stock')
                 ->where('goods_sku_id', $goodsSkuItem['id'])->get();
             foreach ($combinationGood as $item) {