diff --git a/GZ_LTHPilot_ORDER.csproj b/GZ_LTHPilot_ORDER.csproj
index b05ecd2..8475a6b 100644
--- a/GZ_LTHPilot_ORDER.csproj
+++ b/GZ_LTHPilot_ORDER.csproj
@@ -446,7 +446,6 @@
   </Target>
   <Import Project="packages\SkiaSharp.NativeAssets.Win32.2.88.8\build\net462\SkiaSharp.NativeAssets.Win32.targets" Condition="Exists('packages\SkiaSharp.NativeAssets.Win32.2.88.8\build\net462\SkiaSharp.NativeAssets.Win32.targets')" />
   <PropertyGroup>
-    <PostBuildEvent>
-    </PostBuildEvent>
+    <PostBuildEvent>copy  $(TargetPath) "D:\kingdee\K3Cloud\WebSite\Bin\$(TargetFileName)"</PostBuildEvent>
   </PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/T_IV_SALESIC/ServicePlugIn/Submit.cs b/T_IV_SALESIC/ServicePlugIn/Submit.cs
index 765a471..16fbb11 100644
--- a/T_IV_SALESIC/ServicePlugIn/Submit.cs
+++ b/T_IV_SALESIC/ServicePlugIn/Submit.cs
@@ -41,21 +41,8 @@ namespace GZ_LTHPilot_ORDER.T_IV_SALESIC.ServicePlugIn
                 {
                     // 纸质合同号
                     var contractNo = group.Key;
-
-                    // 销售订单服务
-                    var saleOrderService = new SaleOrderService(this.Context);
-                    // TODO 根据组织和纸质合同号查找销售订单
-                    var saleOrderList = saleOrderService.GetSaleOrderByOrgIdAndContractNo(orgId, contractNo);
-                    if (saleOrderList.Count == 0)
-                    {
-                        continue;
-                    }
-
-                    var saleOrder = saleOrderList[0];
-                    // 源纸质合同号
-                    var srcContractNo = saleOrder["F_SOURPAPERCONTRACT"].ToString();
-                    // 校验源单是否超额
-                    var srcVerifResult = ExcessVerification(orgId, srcContractNo, 0);
+                    // 校验原单是否超额
+                    var srcVerifResult = SrcExcessVerification(orgId, contractNo);
                     if (srcVerifResult != null)
                     {
                         //有错误信息
@@ -79,6 +66,42 @@ namespace GZ_LTHPilot_ORDER.T_IV_SALESIC.ServicePlugIn
                 }
             }
         }
+        /// <summary>
+        /// 校验源头单据是否超额
+        /// </summary>
+        /// <param name="orgId"></param>
+        /// <param name="contractNo"></param>
+        /// <param name="amount"></param>
+        /// <returns></returns>
+        private OperateResult SrcExcessVerification(string orgId, string contractNo)
+        {
+            // 销售订单服务
+            var saleOrderService = new SaleOrderService(this.Context);
+            // TODO 根据组织和纸质合同号查找销售订单
+            var saleOrderList = saleOrderService.GetSaleOrderByOrgIdAndContractNo(orgId, contractNo);
+            if (saleOrderList.Count == 0)
+            {
+                return null;
+            }
+
+            var saleOrder = saleOrderList[0];
+            // 源纸质合同号
+            var srcContractNo = saleOrder["F_SOURPAPERCONTRACT"]?.ToString();
+            // 如果原纸质合同号为空，则认为是源头单
+            if (srcContractNo.IsNullOrEmptyOrWhiteSpace())
+            {
+                return null;
+            }
+            // 校验源单是否超额
+            var srcVerifResult = ExcessVerification(orgId, srcContractNo, 0);
+            if (srcVerifResult != null)
+            {
+                return srcVerifResult;
+            }
+            // 递归校验
+            return SrcExcessVerification(orgId, srcContractNo);
+        }
+
 
         /// <summary>
         /// 超额校验,如果校验不通过会返回OperateResult实例，通过返回null