diff --git a/T_IV_SALESIC/ServicePlugIn/Submit.cs b/T_IV_SALESIC/ServicePlugIn/Submit.cs
index 32c4e12..b9a7bde 100644
--- a/T_IV_SALESIC/ServicePlugIn/Submit.cs
+++ b/T_IV_SALESIC/ServicePlugIn/Submit.cs
@@ -64,7 +64,7 @@ namespace GZ_LTHPilot_ORDER.T_IV_SALESIC.ServicePlugIn
                     // 销售订单退货金额（原币）
                     var saleOrderReturnAmount = saleOrderReturnAmountK3 + saleOrderReturnAmountK3Cloud;
                     // 校验销售订单累计开票金额+本次开票金额不能大于销售订单价税合计
-                    if (saleOrderAmount < saleOrderINVOICEAMOUNT + SumALLAMOUNTFOR - saleOrderReturnAmount)
+                    if (saleOrderAmount - saleOrderReturnAmount < saleOrderINVOICEAMOUNT + SumALLAMOUNTFOR)
                     {
                         //有错误信息
                         e.Cancel = true;
@@ -79,9 +79,7 @@ namespace GZ_LTHPilot_ORDER.T_IV_SALESIC.ServicePlugIn
 不满足条件：整单可开票金额 >= 累计开票金额 + 本次开票金额。
 整单可开票金额：{(saleOrderAmount - saleOrderReturnAmountK3Cloud - saleOrderReturnAmountK3).ToString("0.00")}，
 累计开票金额：{saleOrderINVOICEAMOUNT.ToString("0.00")}，
-本次开票金额：{SumALLAMOUNTFOR.ToString("0.00")},
-
-"),
+本次开票金额：{SumALLAMOUNTFOR.ToString("0.00")}"),
                             SuccessStatus = false
                         });
                         this.OperationResult.MergeResult(operationResult);