+ * crm 系统，使用 1-020-000-000 段
+ */
+public interface ErrorCodeConstants {
+
+ // ========== 合同管理 1-020-000-000 ==========
+ ErrorCode CONTRACT_NOT_EXISTS = new ErrorCode(1_020_000_000, "合同不存在");
+
+ // ========== 线索管理 1-020-001-000 ==========
+ ErrorCode CLUE_NOT_EXISTS = new ErrorCode(1_020_001_000, "线索不存在");
+
+ // ========== 商机管理 1-020-002-000 ==========
+ ErrorCode BUSINESS_NOT_EXISTS = new ErrorCode(1_020_002_000, "商机不存在");
+
+ // TODO @lilleo：商机状态、商机类型，都单独错误码段
+
+ ErrorCode BUSINESS_STATUS_TYPE_NOT_EXISTS = new ErrorCode(1_020_002_001, "商机状态类型不存在");
+ ErrorCode BUSINESS_STATUS_NOT_EXISTS = new ErrorCode(1_020_002_002, "商机状态不存在");
+
+ // ========== 联系人管理 1-020-003-000 ==========
+ ErrorCode CONTACT_NOT_EXISTS = new ErrorCode(1_020_003_000, "联系人不存在");
+
+ // ========== 回款管理 1-020-004-000 ==========
+ ErrorCode RECEIVABLE_NOT_EXISTS = new ErrorCode(1_020_004_000, "回款管理不存在");
+
+ // ========== 合同管理 1-020-005-000 ==========
+ ErrorCode RECEIVABLE_PLAN_NOT_EXISTS = new ErrorCode(1_020_005_000, "回款计划不存在");
+
+ // ========== 客户管理 1_020_006_000 ==========
+ ErrorCode CUSTOMER_NOT_EXISTS = new ErrorCode(1_020_006_000, "客户不存在");
+ ErrorCode CUSTOMER_OWNER_EXISTS = new ErrorCode(1_020_006_001, "客户已存在所属负责人");
+ ErrorCode CUSTOMER_LOCKED = new ErrorCode(1_020_006_002, "客户状态已锁定");
+ ErrorCode CUSTOMER_ALREADY_DEAL = new ErrorCode(1_020_006_003, "客户已交易");
+ // TODO @wanwan：这 2 个单独配置段噢
+ ErrorCode CUSTOMER_POOL_CONFIG_ERROR = new ErrorCode(1_020_006_001, "客户公海规则设置不正确");
+ ErrorCode CUSTOMER_LIMIT_CONFIG_NOT_EXISTS = new ErrorCode(1_020_006_002, "客户限制配置不存在");
+
+ // ========== 权限管理 1_020_007_000 ==========
+ ErrorCode CRM_PERMISSION_NOT_EXISTS = new ErrorCode(1_020_007_000, "数据权限不存在");
+ ErrorCode CRM_PERMISSION_DENIED = new ErrorCode(1_020_007_001, "{}操作失败，原因：没有权限");
+ ErrorCode CRM_PERMISSION_MODEL_NOT_EXISTS = new ErrorCode(1_020_007_002, "{}不存在");
+ ErrorCode CRM_PERMISSION_MODEL_TRANSFER_FAIL_OWNER_USER_EXISTS = new ErrorCode(1_020_007_003, "{}操作失败，原因：转移对象已经是该负责人");
+
+ // ========== 产品 1_020_008_000 ==========
+ ErrorCode PRODUCT_NOT_EXISTS = new ErrorCode(1_020_008_000, "产品不存在");
+ ErrorCode PRODUCT_NO_EXISTS = new ErrorCode(1_020_008_001, "产品编号已存在");
+
+ // ========== 产品分类 1_020_009_000 ==========
+ ErrorCode PRODUCT_CATEGORY_NOT_EXISTS = new ErrorCode(1_020_009_000, "产品分类不存在");
+
+}
diff --git a/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/ReturnTypeEnum.java b/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/ReturnTypeEnum.java
new file mode 100644
index 000000000..e6074c432
--- /dev/null
+++ b/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/ReturnTypeEnum.java
@@ -0,0 +1,8 @@
+package cn.iocoder.yudao.module.crm.enums;
+
+// TODO @liuhongfeng：这个的作用是？
+/**
+ * @author 赤焰
+ */
+public enum ReturnTypeEnum {
+}
diff --git a/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/customer/CrmCustomerLevelEnum.java b/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/customer/CrmCustomerLevelEnum.java
new file mode 100644
index 000000000..aa06b05eb
--- /dev/null
+++ b/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/customer/CrmCustomerLevelEnum.java
@@ -0,0 +1,38 @@
+package cn.iocoder.yudao.module.crm.enums.customer;
+
+import cn.iocoder.yudao.framework.common.core.IntArrayValuable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+
+/**
+ * CRM 客户等级
+ *
+ * @author Wanwan
+ */
+@Getter
+@AllArgsConstructor
+public enum CrmCustomerLevelEnum implements IntArrayValuable {
+
+ IMPORTANT(1, "A（重点客户）"),
+ GENERAL(2, "B（普通客户）"),
+ LOW_PRIORITY(3, "C（非优先客户）");
+
+ public static final int[] ARRAYS = Arrays.stream(values()).mapToInt(CrmCustomerLevelEnum::getLevel).toArray();
+
+ /**
+ * 状态
+ */
+ private final Integer level;
+ /**
+ * 状态名
+ */
+ private final String name;
+
+ @Override
+ public int[] array() {
+ return ARRAYS;
+ }
+
+}
diff --git a/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/customer/CrmCustomerSceneEnum.java b/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/customer/CrmCustomerSceneEnum.java
new file mode 100644
index 000000000..81cb674eb
--- /dev/null
+++ b/yudao-module-crm/yudao-module-crm-api/src/main/java/cn/iocoder/yudao/module/crm/enums/customer/CrmCustomerSceneEnum.java
@@ -0,0 +1,47 @@
+package cn.iocoder.yudao.module.crm.enums.customer;
+
+import cn.hutool.core.util.ObjUtil;
+import cn.iocoder.yudao.framework.common.core.IntArrayValuable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+
+// TODO @puhui999：这个应该是 crm 全局的，不仅仅属于 customer 客户哈；
+/**
+ * CRM 客户等级
+ *
+ * @author Wanwan
+ */
+@Getter
+@AllArgsConstructor
+public enum CrmCustomerSceneEnum implements IntArrayValuable {
+
+ OWNER(1, "我负责的客户"),
+ FOLLOW(2, "我关注的客户");
+
+ public static final int[] ARRAYS = Arrays.stream(values()).mapToInt(CrmCustomerSceneEnum::getType).toArray();
+
+ /**
+ * 场景类型
+ */
+ private final Integer type;
+ /**
+ * 场景名称
+ */
+ private final String name;
+
+ public static boolean isOwner(Integer type) {
+ return ObjUtil.equal(OWNER.getType(), type);
+ }
+
+ public static boolean isFollow(Integer type) {
+ return ObjUtil.equal(FOLLOW.getType(), type);
+ }
+
+ @Override
+ public int[] array() {
+ return ARRAYS;
+ }
+
+}
diff --git a/yudao-module-crm/yudao-module-crm-biz/pom.xml b/yudao-module-crm/yudao-module-crm-biz/pom.xml
new file mode 100644
index 000000000..15bbc932d
--- /dev/null
+++ b/yudao-module-crm/yudao-module-crm-biz/pom.xml
@@ -0,0 +1,70 @@
+
+