diff --git a/BBWY.Client/APIServices/PurchaseOrderService.cs b/BBWY.Client/APIServices/PurchaseOrderService.cs
index 0e9d964e..6e323e9e 100644
--- a/BBWY.Client/APIServices/PurchaseOrderService.cs
+++ b/BBWY.Client/APIServices/PurchaseOrderService.cs
@@ -96,21 +96,23 @@ namespace BBWY.Client.APIServices
         /// <param name="sellerAccount"></param>
         /// <param name="purchaserId"></param>
         /// <param name="platformCommissionRatio"></param>
+        /// <param name="extensions"></param>
         /// <returns></returns>
         public ApiResponse<object> FastCreateOrder(Consignee consignee,
-                                           IList<PurchaseSchemeProductSku> purchaseSchemeProductSkuList,
-                                           Platform purchasePlatform,
-                                           PurchaseAccount purchaseAccount,
-                                           PurchaseOrderMode purchaseOrderMode,
-                                           string tradeMode,
-                                           string remark,
-                                           string orderId,
-                                           long shopId,
-                                           long purchaseAccountId,
-                                           string buyerAccount,
-                                           string sellerAccount,
-                                           string purchaserId,
-                                           decimal platformCommissionRatio)
+                                                   IList<PurchaseSchemeProductSku> purchaseSchemeProductSkuList,
+                                                   Platform purchasePlatform,
+                                                   PurchaseAccount purchaseAccount,
+                                                   PurchaseOrderMode purchaseOrderMode,
+                                                   string tradeMode,
+                                                   string remark,
+                                                   string orderId,
+                                                   long shopId,
+                                                   long purchaseAccountId,
+                                                   string buyerAccount,
+                                                   string sellerAccount,
+                                                   string purchaserId,
+                                                   decimal platformCommissionRatio,
+                                                   string extensions)
         {
             return SendRequest<object>(globalContext.BBYWApiHost, "api/purchaseOrder/NewFastCreateOrder", new
             {
@@ -137,7 +139,8 @@ namespace BBWY.Client.APIServices
                 buyerAccount,
                 sellerAccount,
                 purchaserId,
-                platformCommissionRatio
+                platformCommissionRatio,
+                extensions
             }, null, HttpMethod.Post);
         }
 
diff --git a/BBWY.Client/ViewModels/Purchase/1688PreviewPurchaseViewModel.cs b/BBWY.Client/ViewModels/Purchase/1688PreviewPurchaseViewModel.cs
index d7026e40..eb7321e4 100644
--- a/BBWY.Client/ViewModels/Purchase/1688PreviewPurchaseViewModel.cs
+++ b/BBWY.Client/ViewModels/Purchase/1688PreviewPurchaseViewModel.cs
@@ -287,7 +287,7 @@ namespace BBWY.Client.ViewModels
                 TelePhone = Mobile,
                 Town = Town
             }, PurchaseSchemeProductSkuList,
-               Platform.阿里巴巴,
+               purchaseAccount.PurchasePlatformId,
                purchaseAccount,
                PurchaseOrderMode,
                tradeMode,
@@ -298,7 +298,8 @@ namespace BBWY.Client.ViewModels
                purchaseAccount.AccountName,
                purchaseSchemeList[0].PurchaserName,
                purchaser.Id,
-               globalContext.User.Shop.PlatformCommissionRatio ?? 0.05M)).ContinueWith(t =>
+               globalContext.User.Shop.PlatformCommissionRatio ?? 0.05M,
+               extensions)).ContinueWith(t =>
                   {
                       IsLoading = false;
                       var r = t.Result;
diff --git a/BBWY.Server.Business/PlatformSDK/QuanTanBusiness.cs b/BBWY.Server.Business/PlatformSDK/QuanTanBusiness.cs
index b3f7c4a4..01674da6 100644
--- a/BBWY.Server.Business/PlatformSDK/QuanTanBusiness.cs
+++ b/BBWY.Server.Business/PlatformSDK/QuanTanBusiness.cs
@@ -24,6 +24,7 @@ namespace BBWY.Server.Business
         {
             var quantanPreviewOrderRequest = new QuanTanPreviewOrderRequest()
             {
+                clientOrderId = "",
                 userAccount = previewOrderReuqest.AppToken,
                 receipt = new QuanTanPreviewOrderReceipt()
                 {
diff --git a/QuanTan.SDK/Model/Request/Order/QuanTanPreviewOrderRequest.cs b/QuanTan.SDK/Model/Request/Order/QuanTanPreviewOrderRequest.cs
index ab308648..94aa29b6 100644
--- a/QuanTan.SDK/Model/Request/Order/QuanTanPreviewOrderRequest.cs
+++ b/QuanTan.SDK/Model/Request/Order/QuanTanPreviewOrderRequest.cs
@@ -4,6 +4,8 @@ namespace QuanTan.SDK.Model
 {
     public class QuanTanPreviewOrderRequest
     {
+        public string clientOrderId { get; set; }
+
         public string userAccount { get; set; }
 
         public IList<QuanTanPreviewOrderProduct> buyInfo { get; set; }