diff --git a/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs b/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
index a588427..ae2da82 100644
--- a/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
+++ b/BBWYB.Server.Business/PurchaseOrder/PurchaseOrderBusiness.cs
@@ -105,6 +105,27 @@ namespace BBWYB.Server.Business
             if (request.CargoParamGroupList == null || request.CargoParamGroupList.Count() == 0)
                 throw new BusinessException("缺少报价参数");
 
+            #region 验证同一个批次中，一个订单sku不能同时拥有多个采购方案
+            IDictionary<string, long> schemeValidationDictionary = new Dictionary<string, long>();
+            foreach (var purchaseGroup in request.CargoParamGroupList)
+            {
+                foreach (var cargo in purchaseGroup.CargoParamList)
+                {
+                    if (!schemeValidationDictionary.ContainsKey(cargo.BelongSkuId))
+                        schemeValidationDictionary.TryAdd(cargo.BelongSkuId, cargo.SchemeId);
+
+                    if (schemeValidationDictionary.TryGetValue(cargo.BelongSkuId, out long schemeId))
+                    {
+                        if (cargo.SchemeId != schemeId)
+                        {
+                            throw new BusinessException($"订单sku{cargo.BelongSkuId}只允许使用一个采购方案进行报价");
+                        }
+                    }
+                }
+            }
+            schemeValidationDictionary.Clear();
+            #endregion
+
             var extJArray = new List<object>();
             var errorBuilder = new StringBuilder();
             var freightAmount = 0M;
@@ -204,6 +225,28 @@ namespace BBWYB.Server.Business
             if (request.CargoParamGroupList == null || request.CargoParamGroupList.Count() == 0)
                 throw new BusinessException("缺少下单商品参数");
 
+            #region 验证同一个批次中，一个订单sku不能同时拥有多个采购方案
+            IDictionary<string, long> schemeValidationDictionary = new Dictionary<string, long>();
+            foreach (var purchaseGroup in request.CargoParamGroupList)
+            {
+                foreach (var cargo in purchaseGroup.CargoParamList)
+                {
+                    if (!schemeValidationDictionary.ContainsKey(cargo.BelongSkuId))
+                        schemeValidationDictionary.TryAdd(cargo.BelongSkuId, cargo.SchemeId);
+
+                    if (schemeValidationDictionary.TryGetValue(cargo.BelongSkuId, out long schemeId))
+                    {
+                        if (cargo.SchemeId != schemeId)
+                        {
+                            throw new BusinessException($"订单sku{cargo.BelongSkuId}只允许使用一个采购方案进行下单");
+                        }
+                    }
+                }
+            }
+            schemeValidationDictionary.Clear();
+            #endregion
+
+
             var isRepurchase = fsql.Select<OrderCost>(dbOrder.Id).Any();
             var orderSkus = fsql.Select<OrderSku>().Where(osku => osku.Price != 0 && osku.OrderId == request.OrderId).ToList();
             var orderPurchaseInfoList = fsql.Select<OrderPurchaseInfo>().Where(opi => opi.OrderId == request.OrderId && opi.IsEnabled == true).ToList();
diff --git a/SDKAdapter/PurchasePlatform/Client/Impl/PP_1688Client.cs b/SDKAdapter/PurchasePlatform/Client/Impl/PP_1688Client.cs
index 8bd875c..f1cc945 100644
--- a/SDKAdapter/PurchasePlatform/Client/Impl/PP_1688Client.cs
+++ b/SDKAdapter/PurchasePlatform/Client/Impl/PP_1688Client.cs
@@ -227,7 +227,7 @@ namespace SDKAdapter.PurchasePlatform.Client
                 _request.AccessToken = request.AppToken;
             var result = client.NewRequest(_request, reqPolicy);
             if (result.Value<bool>("success") != true)
-                throw new Exception(result.Value<string>("errorMessage"));
+                throw new BusinessException(result.Value<string>("errorMessage"));
 
 
             return new PP_QueryOrderDetailResponse()