diff --git a/pom.xml b/pom.xml
index 3a66524bc..9cf34eb37 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,12 +16,12 @@
         <module>yudao-module-system</module>
         <module>yudao-module-infra</module>
 <!--        <module>yudao-module-member</module>-->
-<!--        <module>yudao-module-bpm</module>-->
+        <module>yudao-module-bpm</module>
 <!--        <module>yudao-module-report</module>-->
 <!--        <module>yudao-module-mp</module>-->
 <!--        <module>yudao-module-pay</module>-->
 <!--        <module>yudao-module-mall</module>-->
-<!--        <module>yudao-module-crm</module>-->
+        <module>yudao-module-crm</module>
 <!--        <module>yudao-module-erp</module>-->
         <!-- 示例项目 -->
 <!--        <module>yudao-example</module>-->
diff --git a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerByUserBaseRespVO.java b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerByUserBaseRespVO.java
index 340e93066..41fa9152e 100644
--- a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerByUserBaseRespVO.java
+++ b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerByUserBaseRespVO.java
@@ -5,12 +5,14 @@ import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 /**
- * 用户客户统计响应 Base VO
+ * 用户客户统计响应 Base Response VO
+ *
+ * 目的：可以统一拼接子 VO 的 ownerUserId、ownerUserName 属性
  */
 @Data
 public class CrmStatisticsCustomerByUserBaseRespVO {
 
-    @Schema(description = "负责人ID", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    @Schema(description = "负责人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
     @JsonIgnore
     private Long ownerUserId;
 
diff --git a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerContractSummaryRespVO.java b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerContractSummaryRespVO.java
index 019309f8e..ec1d27303 100644
--- a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerContractSummaryRespVO.java
+++ b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerContractSummaryRespVO.java
@@ -5,13 +5,13 @@ import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
-import org.springframework.format.annotation.DateTimeFormat;
 
 import java.math.BigDecimal;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 
-import static cn.iocoder.yudao.framework.common.util.date.DateUtils.*;
+import static cn.iocoder.yudao.framework.common.util.date.DateUtils.FORMAT_YEAR_MONTH_DAY;
+import static cn.iocoder.yudao.framework.common.util.date.DateUtils.TIME_ZONE_DEFAULT;
 
 @Schema(description = "管理后台 - CRM 客户转化率分析 VO")
 @Data
@@ -43,14 +43,14 @@ public class CrmStatisticsCustomerContractSummaryRespVO {
     @Schema(description = "客户来源", requiredMode = Schema.RequiredMode.REQUIRED, example = "外呼")
     private String sourceName;
 
-    @Schema(description = "负责人ID", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    @Schema(description = "负责人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
     @JsonIgnore
     private Long ownerUserId;
 
     @Schema(description = "负责人", requiredMode = Schema.RequiredMode.REQUIRED, example = "芋道源码")
     private String ownerUserName;
 
-    @Schema(description = "创建人ID", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
+    @Schema(description = "创建人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
     @JsonIgnore
     private String creatorUserId;
 
diff --git a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerReqVO.java b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerReqVO.java
index a7aaa4da5..c5d5acbc3 100644
--- a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerReqVO.java
+++ b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/controller/admin/statistics/vo/customer/CrmStatisticsCustomerReqVO.java
@@ -12,7 +12,7 @@ import java.util.List;
 
 import static cn.iocoder.yudao.framework.common.util.date.DateUtils.FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND;
 
-@Schema(description = "管理后台 - CRM 数据统计 员工客户分析 Request VO")
+@Schema(description = "管理后台 - CRM 数据统计的员工客户分析 Request VO")
 @Data
 public class CrmStatisticsCustomerReqVO {
 
@@ -39,12 +39,16 @@ public class CrmStatisticsCustomerReqVO {
     @NotEmpty(message = "时间范围不能为空")
     private LocalDateTime[] times;
 
+    // TODO @dhb52：这个时间间隔，建议前端传递；例如说：字段叫 interval，枚举有天、周、月、季度、年。因为一般分析类的系统，都是交给用户选择筛选时间间隔，而我们这里是默认根据日期选项，默认对应的 interval 而已
+    // 然后实现上，可以在 common 包的 enums 加个 DateIntervalEnum，里面一个是 interval 字段，枚举过去，然后有个 pattern 字段，用于格式化时间格式；
+    // 这样的话，可以通过 interval 获取到 pattern，然后前端就可以根据 pattern 格式化时间，计算还是交给数据库
     /**
      * group by DATE_FORMAT(field, #{dateFormat})
      */
     @Schema(description = "Group By 日期格式", requiredMode = Schema.RequiredMode.NOT_REQUIRED, example = "%Y%m")
     private String sqlDateFormat;
 
+    // TODO @dhb52：这个字段，目前是不是没啥用呀？
     /**
      * 数据类型 {@link CrmBizTypeEnum}
      */
diff --git a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/statistics/CrmStatisticsCustomerMapper.java b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/statistics/CrmStatisticsCustomerMapper.java
index 6bababa26..19bd76fc3 100644
--- a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/statistics/CrmStatisticsCustomerMapper.java
+++ b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/dal/mysql/statistics/CrmStatisticsCustomerMapper.java
@@ -13,17 +13,18 @@ import java.util.List;
 @Mapper
 public interface CrmStatisticsCustomerMapper {
 
-    List<CrmStatisticsCustomerSummaryByDateRespVO> selectCustomerCreateCountGroupbyDate(CrmStatisticsCustomerReqVO reqVO);
+    // TODO @dhb52：拼写，GroupBy。一般 idea 如果出现绿色的警告，可能是单词拼写错误，建议是要修改的哈；
+    List<CrmStatisticsCustomerSummaryByDateRespVO> selectCustomerCreateCountGroupbyDate(CrmStatisticsCustomerReqVO reqVO); // 已经 review
 
-    List<CrmStatisticsCustomerSummaryByDateRespVO> selectCustomerDealCountGroupbyDate(CrmStatisticsCustomerReqVO reqVO);
+    List<CrmStatisticsCustomerSummaryByDateRespVO> selectCustomerDealCountGroupbyDate(CrmStatisticsCustomerReqVO reqVO); // 已经 review
 
-    List<CrmStatisticsCustomerSummaryByUserRespVO> selectCustomerCreateCountGroupbyUser(CrmStatisticsCustomerReqVO reqVO);
+    List<CrmStatisticsCustomerSummaryByUserRespVO> selectCustomerCreateCountGroupbyUser(CrmStatisticsCustomerReqVO reqVO); // 已经 review
 
-    List<CrmStatisticsCustomerSummaryByUserRespVO> selectCustomerDealCountGroupbyUser(CrmStatisticsCustomerReqVO crmStatisticsCustomerReqVO);
+    List<CrmStatisticsCustomerSummaryByUserRespVO> selectCustomerDealCountGroupbyUser(CrmStatisticsCustomerReqVO crmStatisticsCustomerReqVO); // 已经 review
 
-    List<CrmStatisticsCustomerSummaryByUserRespVO> selectContractPriceGroupbyUser(CrmStatisticsCustomerReqVO crmStatisticsCustomerReqVO);
+    List<CrmStatisticsCustomerSummaryByUserRespVO> selectContractPriceGroupbyUser(CrmStatisticsCustomerReqVO crmStatisticsCustomerReqVO); // 已经 review
 
-    List<CrmStatisticsCustomerSummaryByUserRespVO> selectReceivablePriceGroupbyUser(CrmStatisticsCustomerReqVO crmStatisticsCustomerReqVO);
+    List<CrmStatisticsCustomerSummaryByUserRespVO> selectReceivablePriceGroupbyUser(CrmStatisticsCustomerReqVO crmStatisticsCustomerReqVO);  // 已经 review
 
     List<CrmStatisticsFollowupSummaryByDateRespVO> selectFollowupRecordCountGroupbyDate(CrmStatisticsCustomerReqVO reqVO);
 
diff --git a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/service/statistics/CrmStatisticsCustomerServiceImpl.java b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/service/statistics/CrmStatisticsCustomerServiceImpl.java
index 6b664dce5..c9654a68e 100644
--- a/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/service/statistics/CrmStatisticsCustomerServiceImpl.java
+++ b/yudao-module-crm/yudao-module-crm-biz/src/main/java/cn/iocoder/yudao/module/crm/service/statistics/CrmStatisticsCustomerServiceImpl.java
@@ -55,7 +55,6 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
     @Resource
     private DictDataApi dictDataApi;
 
-
     @Override
     public List<CrmStatisticsCustomerSummaryByDateRespVO> getCustomerSummaryByDate(CrmStatisticsCustomerReqVO reqVO) {
         // 1. 获得用户编号数组
@@ -66,14 +65,17 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
         reqVO.setUserIds(userIds);
 
         // 2. 获取分项统计数据
+        // TODO @dhb52：如果是 list 变量，要么 List 要么 s 后缀
         reqVO.setSqlDateFormat(getSqlDateFormat(reqVO.getTimes()[0], reqVO.getTimes()[1]));
         final List<CrmStatisticsCustomerSummaryByDateRespVO> customerCreateCount = customerMapper.selectCustomerCreateCountGroupbyDate(reqVO);
         final List<CrmStatisticsCustomerSummaryByDateRespVO> customerDealCount = customerMapper.selectCustomerDealCountGroupbyDate(reqVO);
 
         // 3. 获取时间序列
+        // TODO @dhb52：3 和 4 其实做的是一类事情，所以可以考虑 3.1 获取时间序列、3.2 合并统计数据 这样注释；然后中间就不空行了；就是说，一般空行的目的，是让逻辑分片，看着整体性更好，但是不能让逻辑感觉碎碎的；
         final List<String> times = generateTimeSeries(reqVO.getTimes()[0], reqVO.getTimes()[1]);
 
         // 4. 合并统计数据
+        // TODO @dhb52：这个是不是要 add 到 respVoList 里？或者还可以 convertList(times, time -> new CrmStatisticsCustomerDealCycleByDateRespVO()...)
         List<CrmStatisticsCustomerSummaryByDateRespVO> respVoList = new ArrayList<>(times.size());
         final Map<String, Integer> customerCreateCountMap = convertMap(customerCreateCount,
             CrmStatisticsCustomerSummaryByDateRespVO::getTime,
@@ -86,7 +88,6 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
                 .setCustomerCreateCount(customerCreateCountMap.getOrDefault(time, 0))
                 .setCustomerDealCount(customerDealCountMap.getOrDefault(time, 0))
         ));
-
         return respVoList;
     }
 
@@ -131,7 +132,6 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
 
         // 4. 拼接用户信息
         appendUserInfo(respVoList);
-
         return respVoList;
     }
 
@@ -202,7 +202,6 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
 
         // 4. 拼接用户信息
         appendUserInfo(respVoList);
-
         return respVoList;
     }
 
@@ -290,7 +289,6 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
             new CrmStatisticsCustomerDealCycleByDateRespVO().setTime(time)
                 .setCustomerDealCycle(customerDealCycleMap.getOrDefault(time, 0D))
         ));
-
         return respVoList;
     }
 
@@ -337,9 +335,8 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
      */
     private <T extends CrmStatisticsCustomerByUserBaseRespVO> void appendUserInfo(List<T> respVoList) {
         Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(convertSet(respVoList,
-            CrmStatisticsCustomerByUserBaseRespVO::getOwnerUserId));
-        respVoList.forEach(vo -> MapUtils.findAndThen(userMap,
-            vo.getOwnerUserId(), user -> vo.setOwnerUserName(user.getNickname())));
+                CrmStatisticsCustomerByUserBaseRespVO::getOwnerUserId));
+        respVoList.forEach(vo -> MapUtils.findAndThen(userMap, vo.getOwnerUserId(), user -> vo.setOwnerUserName(user.getNickname())));
     }
 
     /**
@@ -349,16 +346,17 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
      * @return 用户编号数组
      */
     private List<Long> getUserIds(CrmStatisticsCustomerReqVO reqVO) {
+        // 情况一：选中某个用户
         if (ObjUtil.isNotNull(reqVO.getUserId())) {
             return List.of(reqVO.getUserId());
-        } else {
-            // 1. 获得部门列表
-            final Long deptId = reqVO.getDeptId();
-            List<Long> deptIds = convertList(deptApi.getChildDeptList(deptId), DeptRespDTO::getId);
-            deptIds.add(deptId);
-            // 2. 获得用户编号
-            return convertList(adminUserApi.getUserListByDeptIds(deptIds), AdminUserRespDTO::getId);
         }
+        // 情况二：选中某个部门
+        // 2.1 获得部门列表
+        final Long deptId = reqVO.getDeptId();
+        List<Long> deptIds = convertList(deptApi.getChildDeptList(deptId), DeptRespDTO::getId);
+        deptIds.add(deptId);
+        // 2.2 获得用户编号
+        return convertList(adminUserApi.getUserListByDeptIds(deptIds), AdminUserRespDTO::getId);
     }
 
 
@@ -380,6 +378,7 @@ public class CrmStatisticsCustomerServiceImpl implements CrmStatisticsCustomerSe
      * @param endTime   结束时间
      * @return 时间序列
      */
+    // TODO @dhb52：可以抽象到 DateUtils 里，开始时间、结束时间，事件间隔，然后返回这个哈；
     private List<String> generateTimeSeries(LocalDateTime startTime, LocalDateTime endTime) {
         boolean byMonth = queryByMonth(startTime, endTime);
         List<String> times = CollUtil.newArrayList();
diff --git a/yudao-module-crm/yudao-module-crm-biz/src/main/resources/mapper/statistics/CrmStatisticsCustomerMapper.xml b/yudao-module-crm/yudao-module-crm-biz/src/main/resources/mapper/statistics/CrmStatisticsCustomerMapper.xml
index 3fd52f3e7..fce255651 100644
--- a/yudao-module-crm/yudao-module-crm-biz/src/main/resources/mapper/statistics/CrmStatisticsCustomerMapper.xml
+++ b/yudao-module-crm/yudao-module-crm-biz/src/main/resources/mapper/statistics/CrmStatisticsCustomerMapper.xml
@@ -2,11 +2,14 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="cn.iocoder.yudao.module.crm.dal.mysql.statistics.CrmStatisticsCustomerMapper">
 
+    <!-- TODO @dhb52：数据库的关键字，进行大写。例如说，COUNT -->
+
     <select id="selectCustomerCreateCountGroupbyDate"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.customer.CrmStatisticsCustomerSummaryByDateRespVO">
         SELECT
+        <!-- TODO @dhb52：下面这个，缩进一个 tab；这样可读性更好哈 -->
         DATE_FORMAT( create_time, #{sqlDateFormat} ) AS time,
-        count(*) AS customerCreateCount
+        COUNT(*) AS customerCreateCount
         FROM crm_customer
         WHERE deleted = 0
         AND owner_user_id IN
@@ -14,6 +17,7 @@
             #{userId}
         </foreach>
         AND create_time BETWEEN #{times[0],javaType=java.time.LocalDateTime} AND
+        <!-- TODO @dhb52：这可以考虑不换行，直接跟在后面的 AND，更连贯哈； -->
         #{times[1],javaType=java.time.LocalDateTime}
         GROUP BY time
     </select>
@@ -21,6 +25,8 @@
     <select id="selectCustomerDealCountGroupbyDate"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.customer.CrmStatisticsCustomerSummaryByDateRespVO">
         SELECT
+        <!-- TODO @dhb52：下面这个，缩进一个 tab；这样可读性更好哈 -->
+        <!-- TODO @dhb52：表变量最好不要用 a、b；可以用 customer 和 constract；虽然长一点，但是一眼看的清楚哈 -->
         DATE_FORMAT( b.order_date, #{sqlDateFormat} ) AS time,
         count( DISTINCT a.id ) AS customerDealCount
         FROM crm_customer AS a
@@ -31,11 +37,13 @@
         <foreach collection="userIds" item="userId" open="(" close=")" separator=",">
             #{userId}
         </foreach>
+        <!-- TODO @dhb52：这个应该是 order_date 的范围哈；貌似如果改成这样，不需要查询 customer 表，只要 contract 表就 ok 拉 -->
         AND b.create_time BETWEEN #{times[0],javaType=java.time.LocalDateTime} AND
         #{times[1],javaType=java.time.LocalDateTime}
         GROUP BY time
     </select>
 
+    <!-- TODO @dhb52：根据上面建议，进行优化 -->
     <select id="selectCustomerCreateCountGroupbyUser"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.customer.CrmStatisticsCustomerSummaryByUserRespVO">
         SELECT owner_user_id, COUNT(1) AS customer_create_count
@@ -50,6 +58,7 @@
         GROUP BY owner_user_id
     </select>
 
+    <!-- TODO @dhb52：根据上面建议，进行优化 -->
     <select id="selectCustomerDealCountGroupbyUser"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.customer.CrmStatisticsCustomerSummaryByUserRespVO">
         SELECT a.owner_user_id, count( DISTINCT a.id ) AS customer_deal_count
@@ -66,6 +75,7 @@
         GROUP BY a.owner_user_id
     </select>
 
+    <!-- TODO @dhb52：根据上面建议，进行优化 -->
     <select id="selectContractPriceGroupbyUser"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.customer.CrmStatisticsCustomerSummaryByUserRespVO">
         SELECT owner_user_id, IFNULL(SUM(total_price), 0) AS contract_price
@@ -82,6 +92,7 @@
     </select>
 
 
+    <!-- TODO @dhb52：根据上面建议，进行优化 -->
     <select id="selectReceivablePriceGroupbyUser"
             resultType="cn.iocoder.yudao.module.crm.controller.admin.statistics.vo.customer.CrmStatisticsCustomerSummaryByUserRespVO">
         SELECT owner_user_id,
diff --git a/yudao-server/pom.xml b/yudao-server/pom.xml
index bc850b590..ff17b298d 100644
--- a/yudao-server/pom.xml
+++ b/yudao-server/pom.xml
@@ -46,11 +46,11 @@
 <!--            <version>${revision}</version>-->
 <!--        </dependency>-->
         <!-- 工作流。默认注释，保证编译速度 -->
-<!--        <dependency>-->
-<!--            <groupId>cn.iocoder.boot</groupId>-->
-<!--            <artifactId>yudao-module-bpm-biz</artifactId>-->
-<!--            <version>${revision}</version>-->
-<!--        </dependency>-->
+        <dependency>
+            <groupId>cn.iocoder.boot</groupId>
+            <artifactId>yudao-module-bpm-biz</artifactId>
+            <version>${revision}</version>
+        </dependency>
         <!-- 支付服务。默认注释，保证编译速度 -->
 <!--        <dependency>-->
 <!--            <groupId>cn.iocoder.boot</groupId>-->
@@ -88,18 +88,18 @@
 <!--        </dependency>-->
 
         <!-- CRM 相关模块。默认注释，保证编译速度 -->
-<!--        <dependency>-->
-<!--            <groupId>cn.iocoder.boot</groupId>-->
-<!--            <artifactId>yudao-module-crm-biz</artifactId>-->
-<!--            <version>${revision}</version>-->
-<!--        </dependency>-->
+        <dependency>
+            <groupId>cn.iocoder.boot</groupId>
+            <artifactId>yudao-module-crm-biz</artifactId>
+            <version>${revision}</version>
+        </dependency>
 
         <!-- ERP 相关模块。默认注释，保证编译速度 -->
-<!--        <dependency>-->
-<!--            <groupId>cn.iocoder.boot</groupId>-->
-<!--            <artifactId>yudao-module-erp-biz</artifactId>-->
-<!--            <version>${revision}</version>-->
-<!--        </dependency>-->
+        <dependency>
+            <groupId>cn.iocoder.boot</groupId>
+            <artifactId>yudao-module-erp-biz</artifactId>
+            <version>${revision}</version>
+        </dependency>
 
         <!-- spring boot 配置所需依赖 -->
         <dependency>