diff --git a/lc123/cloud/app/plugin/operate/pm/PurOrderSubmitValidOp.java b/lc123/cloud/app/plugin/operate/pm/PurOrderSubmitValidOp.java
new file mode 100644
index 0000000..28b4014
--- /dev/null
+++ b/lc123/cloud/app/plugin/operate/pm/PurOrderSubmitValidOp.java
@@ -0,0 +1,118 @@
+package tqq9.lc123.cloud.app.plugin.operate.pm;
+
+import kd.bos.dataentity.entity.DynamicObject;
+import kd.bos.dataentity.entity.DynamicObjectCollection;
+import kd.bos.entity.ExtendedDataEntity;
+import kd.bos.entity.plugin.AbstractOperationServicePlugIn;
+import kd.bos.entity.plugin.AddValidatorsEventArgs;
+import kd.bos.entity.plugin.PreparePropertysEventArgs;
+import kd.bos.entity.validate.AbstractValidator;
+import kd.bos.orm.query.QCP;
+import kd.bos.orm.query.QFilter;
+import kd.bos.servicehelper.BusinessDataServiceHelper;
+import kd.bos.util.StringUtils;
+
+import java.math.BigDecimal;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+public class PurOrderSubmitValidOp extends AbstractOperationServicePlugIn {
+
+
+    @Override
+    public void onPreparePropertys(PreparePropertysEventArgs e) {
+        super.onPreparePropertys(e);
+        e.getFieldKeys().add("purbillentry_pay.isprepay");
+        e.getFieldKeys().add("purbillentry_pay.tqq9_paybillno");
+        e.getFieldKeys().add("purbillentry_pay.tqq9_settleamount");
+    }
+
+    @Override
+    public void onAddValidators(AddValidatorsEventArgs e) {
+        super.onAddValidators(e);
+        e.addValidator(new AbstractValidator() {
+            @Override
+            public void validate() {
+                ExtendedDataEntity[] dataEntities1 = this.getDataEntities();
+                for (ExtendedDataEntity extendedDataEntity : dataEntities1) {
+                    DynamicObject dataEntity = extendedDataEntity.getDataEntity();
+                    DynamicObjectCollection purbillentry_pay = dataEntity.getDynamicObjectCollection("purbillentry_pay");
+                    //本采购订单的付款单map
+                    Map<String, BigDecimal> map = new HashMap<>();
+                    for (DynamicObject dynamicObject : purbillentry_pay) {
+                        boolean isprepay = dynamicObject.getBoolean("isprepay");//是否预付
+                        if (isprepay) {
+                            String tqq9_paybillno = dynamicObject.getString("tqq9_paybillno");//付款处理单
+                            if (StringUtils.isNotEmpty(tqq9_paybillno)) {
+                                BigDecimal tqq9_settleamount = dynamicObject.getBigDecimal("tqq9_settleamount") == null
+                                        ? BigDecimal.ZERO : dynamicObject.getBigDecimal("tqq9_settleamount");//本次结算金额
+                                map.put(tqq9_paybillno, tqq9_settleamount);
+                            }
+                        }
+                    }
+
+                    Set<String> set = map.keySet();
+                    if (set.size() > 0) {
+                        DynamicObject[] pm_purorderbills = BusinessDataServiceHelper.load("pm_purorderbill",
+                                "id,billno,purbillentry_pay.tqq9_paybillno,purbillentry_pay.isprepay,purbillentry_pay.tqq9_settleamount"
+                                , new QFilter[]{new QFilter("purbillentry_pay.tqq9_paybillno", QCP.in, set)});
+                        //历史采购订单的付款单map
+                        Map<String, BigDecimal> settleMap = new HashMap<>();
+                        if (null != pm_purorderbills && pm_purorderbills.length > 0) {
+                            for (DynamicObject pm_purorderbill : pm_purorderbills) {
+                                DynamicObjectCollection purbillentry_pay1 = pm_purorderbill.getDynamicObjectCollection("purbillentry_pay");
+                                for (DynamicObject dynamicObject : purbillentry_pay1) {
+                                    boolean isprepay = dynamicObject.getBoolean("isprepay");//是否预付
+                                    if (isprepay) {
+                                        String tqq9_paybillno = dynamicObject.getString("tqq9_paybillno");//付款处理单
+                                        if (StringUtils.isNotEmpty(tqq9_paybillno) && set.contains(tqq9_paybillno)) {
+                                            BigDecimal tqq9_settleamount = dynamicObject.getBigDecimal("tqq9_settleamount") == null
+                                                    ? BigDecimal.ZERO : dynamicObject.getBigDecimal("tqq9_settleamount");//本次结算金额
+                                            if (!settleMap.containsKey(tqq9_paybillno)) {
+                                                settleMap.put(tqq9_paybillno, tqq9_settleamount);
+                                            } else {
+                                                BigDecimal bigDecimal = settleMap.get(tqq9_paybillno);
+                                                settleMap.put(tqq9_paybillno, tqq9_settleamount.add(bigDecimal));
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+
+                        DynamicObject[] cas_paybills = BusinessDataServiceHelper.load("cas_paybill",
+                                "id,billno,unsettleamount"
+                                , new QFilter[]{new QFilter("billno", QCP.in, set)});
+                        Map<String, BigDecimal> unSettleMap = new HashMap<>();
+                        for (DynamicObject cas_paybill : cas_paybills) {
+                            String casPayBillNo = cas_paybill.getString("billno");
+                            BigDecimal unsettleamount = cas_paybill.getBigDecimal("unsettleamount") == null
+                                    ? BigDecimal.ZERO : cas_paybill.getBigDecimal("unsettleamount");//未结算金额
+                            if (settleMap.containsKey(casPayBillNo)) {
+                                BigDecimal settleAmount = settleMap.get(casPayBillNo);
+                                BigDecimal subtract = unsettleamount.subtract(settleAmount);
+                                unSettleMap.put(casPayBillNo, subtract);
+                            }
+                        }
+
+                        for (String casPayBillNo : set) {
+                            BigDecimal amount = map.get(casPayBillNo);//此次结算金额
+                            if (unSettleMap.containsKey(casPayBillNo)) {
+                                BigDecimal unSettleAmount = unSettleMap.get(casPayBillNo);
+                                //此次结算金额>剩余可结算金额提示
+                                if (amount.compareTo(unSettleAmount) > 0) {
+                                    this.addErrorMessage(extendedDataEntity, "付款单：" + casPayBillNo + "可结算金额不足");
+                                }
+                            }
+
+                        }
+
+
+                    }
+
+                }
+            }
+        });
+    }
+}