chore: 合并联系人是将联系人copy一份保存后关联到主客户。 被合并客户的联系人删除，以备以后数据追加查验。

yudao-module-customer/yudao-module-customer-rest/src/main/java/cn/iocoder/yudao/module/customer/controller/admin/customer/CustomerMergeServiceImpl.java

@@ -7,7 +7,6 @@ import cn.iocoder.yudao.framework.security.core.LoginUser;
 import cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils;
 import cn.iocoder.yudao.module.customer.dal.dataobject.customer.CustomerDO;
 import cn.iocoder.yudao.module.customer.dal.dataobject.customer.complaint.CustomerComplaintDO;
-import cn.iocoder.yudao.module.customer.dal.dataobject.customer.follow.CustomerFollowDO;
 import cn.iocoder.yudao.module.customer.dal.dataobject.customerContacts.CustomerContactsDO;
 import cn.iocoder.yudao.module.customer.dal.dataobject.customerFollowup.CustomerFollowupDO;
 import cn.iocoder.yudao.module.customer.service.customer.CustomerService;
@@ -33,6 +32,7 @@ import cn.iocoder.yudao.module.wealth.service.commissionPayment.CommissionPaymen
 import cn.iocoder.yudao.module.wealth.service.receipt.ReceiptServiceImpl;
 import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import lombok.extern.log4j.Log4j2;
+import org.apache.commons.beanutils.BeanUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
@@ -338,12 +338,22 @@ public class CustomerMergeServiceImpl implements CustomerMergeService {
         if (CollectionUtil.isNotEmpty(cuscontactList2)) {
             for (CustomerContactsDO d : cuscontactList2
             ) {
-                d.setCustomerId(customerDOSaved.getId());
-                //被合并的客户联系人，默认为非默认
-                d.setIsDefault(0);
-                d.setUpdateTime(new Date());
-                d.setUpdater(String.valueOf(loginUserId));
-                customerContactsService.updateById(d);
+                try {
+                    // 1、联系人copy一份
+                    CustomerContactsDO newCustomer = new CustomerContactsDO();
+                    BeanUtils.copyProperties(newCustomer, d);
+                    newCustomer.setId(null);
+                    //被合并的客户联系人，默认为非默认
+                    newCustomer.setIsDefault(0);
+                    // 设置被合并客户的联系人
+                    newCustomer.setCustomerId(customerDOSaved.getId());
+                    customerContactsService.save(newCustomer);
+
+                    // 2、删除被合并客户的联系人
+                    customerContactsService.deleteCustomerContacts(d.getId());
+                } catch (Exception e) {
+                    log.error("合并客户联系人失败", e);
+                }
             }
         }
     }