diff --git a/sql/mysql/mall-promotion-kefu.sql b/sql/mysql/mall-promotion-kefu.sql
new file mode 100644
index 000000000..e0b478f57
--- /dev/null
+++ b/sql/mysql/mall-promotion-kefu.sql
@@ -0,0 +1,37 @@
+DROP TABLE IF EXISTS `promotion_kefu_conversation`;
+CREATE TABLE `promotion_kefu_conversation` (
+    `id` BIGINT NOT NULL AUTO_INCREMENT COMMENT '编号',
+    `user_id` BIGINT NOT NULL COMMENT '会话所属用户',
+    `last_message_time` DATETIME NOT NULL COMMENT '最后聊天时间',
+    `last_message_content` VARCHAR(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '最后聊天内容',
+    `last_message_content_type` INT NOT NULL COMMENT '最后发送的消息类型',
+    `admin_pinned` BIT(1) NOT NULL DEFAULT b'0'  COMMENT '管理端置顶',
+    `user_deleted` BIT(1) NOT NULL DEFAULT b'0' COMMENT '用户是否可见',
+    `admin_deleted` BIT(1) NOT NULL DEFAULT b'0'  COMMENT '管理员是否可见',
+    `admin_unread_message_count` INT NOT NULL COMMENT '管理员未读消息数',
+    `creator` VARCHAR(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT '' COMMENT '创建者',
+    `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `updater` VARCHAR(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT '' COMMENT '更新者',
+    `update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    `deleted` BIT(1) NOT NULL DEFAULT b'0' COMMENT '是否删除',
+    PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci COMMENT = '客服会话' ROW_FORMAT = Dynamic;
+
+DROP TABLE IF EXISTS `promotion_kefu_message`;
+CREATE TABLE `promotion_kefu_message` (
+    `id` BIGINT NOT NULL AUTO_INCREMENT COMMENT '编号',
+    `conversation_id` BIGINT NOT NULL COMMENT '会话编号',
+    `sender_id` BIGINT NOT NULL COMMENT '发送人编号',
+    `sender_type` INT NOT NULL COMMENT '发送人类型',
+    `receiver_id` BIGINT NOT NULL COMMENT '接收人编号',
+    `receiver_type` INT NOT NULL COMMENT '接收人类型',
+    `content_type` INT NOT NULL COMMENT '消息类型',
+    `content` VARCHAR(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '消息',
+    `read_status` BIT(1) NOT NULL DEFAULT b'0' COMMENT '是否已读',
+    `creator` VARCHAR(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT '' COMMENT '创建者',
+    `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `updater` VARCHAR(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT '' COMMENT '更新者',
+    `update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    `deleted` BIT(1) NOT NULL DEFAULT b'0' COMMENT '是否删除',
+    PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci COMMENT = '客服消息' ROW_FORMAT = Dynamic;
diff --git a/yudao-module-mall/yudao-module-promotion-api/src/main/java/cn/iocoder/yudao/module/promotion/enums/ErrorCodeConstants.java b/yudao-module-mall/yudao-module-promotion-api/src/main/java/cn/iocoder/yudao/module/promotion/enums/ErrorCodeConstants.java
index 3b19d616a..8cebd6e13 100644
--- a/yudao-module-mall/yudao-module-promotion-api/src/main/java/cn/iocoder/yudao/module/promotion/enums/ErrorCodeConstants.java
+++ b/yudao-module-mall/yudao-module-promotion-api/src/main/java/cn/iocoder/yudao/module/promotion/enums/ErrorCodeConstants.java
@@ -125,4 +125,10 @@ public interface ErrorCodeConstants {
     ErrorCode DIY_PAGE_NOT_EXISTS = new ErrorCode(1_013_018_000, "装修页面不存在");
     ErrorCode DIY_PAGE_NAME_USED = new ErrorCode(1_013_018_001, "装修页面名称({})已经被使用");
 
+    // ========== 客服会话 1-013-019-000 ==========
+    ErrorCode KEFU_CONVERSATION_NOT_EXISTS = new ErrorCode(1_013_019_000, "客服会话不存在");
+
+    // ========== 客服消息 1-013-020-000 ==========
+    ErrorCode KEFU_MESSAGE_NOT_EXISTS = new ErrorCode(1_013_020_000, "客服消息不存在");
+
 }
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/KeFuConversationController.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/KeFuConversationController.java
new file mode 100644
index 000000000..099cc264c
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/KeFuConversationController.java
@@ -0,0 +1,54 @@
+package cn.iocoder.yudao.module.promotion.controller.admin.kefu;
+
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.conversation.KeFuConversationRespVO;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.conversation.KeFuConversationUpdatePinnedReqVO;
+import cn.iocoder.yudao.module.promotion.service.kefu.KeFuConversationService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
+
+@Tag(name = "管理后台 - 客服会话")
+@RestController
+@RequestMapping("/promotion/kefu-conversation")
+@Validated
+public class KeFuConversationController {
+
+    @Resource
+    private KeFuConversationService conversationService;
+
+    @PostMapping("/update-pinned")
+    @Operation(summary = "置顶客服会话")
+    @PreAuthorize("@ss.hasPermission('promotion:kefu-conversation:update')")
+    public CommonResult<Boolean> updatePinned(@Valid @RequestBody KeFuConversationUpdatePinnedReqVO updateReqVO) {
+        conversationService.updatePinned(updateReqVO);
+        return success(true);
+    }
+
+    @DeleteMapping("/delete")
+    @Operation(summary = "删除客服会话")
+    @Parameter(name = "id", description = "编号", required = true)
+    @PreAuthorize("@ss.hasPermission('promotion:kefu-conversation:delete')")
+    public CommonResult<Boolean> deleteKefuConversation(@RequestParam("id") Long id) {
+        conversationService.deleteKefuConversation(id);
+        return success(true);
+    }
+
+    @GetMapping("/list")
+    @Operation(summary = "获得客服会话列表")
+    @PreAuthorize("@ss.hasPermission('promotion:kefu-conversation:query')")
+    public CommonResult<List<KeFuConversationRespVO>> getKefuConversationPage() {
+        return success(BeanUtils.toBean(conversationService.getKefuConversationList(), KeFuConversationRespVO.class));
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/KeFuMessageController.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/KeFuMessageController.java
new file mode 100644
index 000000000..b8adada3a
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/KeFuMessageController.java
@@ -0,0 +1,58 @@
+package cn.iocoder.yudao.module.promotion.controller.admin.kefu;
+
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessagePageReqVO;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessageRespVO;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessageSendReqVO;
+import org.springframework.web.bind.annotation.*;
+import jakarta.annotation.Resource;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.security.access.prepost.PreAuthorize;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.Operation;
+
+import jakarta.validation.*;
+
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
+import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
+import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId;
+
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuMessageDO;
+import cn.iocoder.yudao.module.promotion.service.kefu.KeFuMessageService;
+
+@Tag(name = "管理后台 - 客服消息")
+@RestController
+@RequestMapping("/promotion/kefu-message")
+@Validated
+public class KeFuMessageController {
+
+    @Resource
+    private KeFuMessageService messageService;
+
+    @PostMapping("/send")
+    @Operation(summary = "发送客服消息")
+    @PreAuthorize("@ss.hasPermission('promotion:kefu-message:send')")
+    public CommonResult<Long> createKefuMessage(@Valid @RequestBody KeFuMessageSendReqVO sendReqVO) {
+        return success(messageService.sendKefuMessage(sendReqVO));
+    }
+
+    @PutMapping("/update-read-status")
+    @Operation(summary = "更新客服消息已读状态")
+    @Parameter(name = "conversationId", description = "会话编号", required = true)
+    @PreAuthorize("@ss.hasPermission('promotion:kefu-message:update')")
+    public CommonResult<Boolean> updateKefuMessageReadStatus(@RequestParam("conversationId") Long conversationId) {
+        messageService.updateKefuMessageReadStatus(conversationId, getLoginUserId());
+        return success(true);
+    }
+
+    @GetMapping("/page")
+    @Operation(summary = "获得客服消息分页")
+    @PreAuthorize("@ss.hasPermission('promotion:kefu-message:query')")
+    public CommonResult<PageResult<KeFuMessageRespVO>> getKefuMessagePage(@Valid KeFuMessagePageReqVO pageReqVO) {
+        PageResult<KeFuMessageDO> pageResult = messageService.getKefuMessagePage(pageReqVO);
+        return success(BeanUtils.toBean(pageResult, KeFuMessageRespVO.class));
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/conversation/KeFuConversationRespVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/conversation/KeFuConversationRespVO.java
new file mode 100644
index 000000000..b3748e147
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/conversation/KeFuConversationRespVO.java
@@ -0,0 +1,42 @@
+package cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.conversation;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.*;
+
+import java.time.LocalDateTime;
+
+@Schema(description = "管理后台 - 客服会话 Response VO")
+@Data
+public class KeFuConversationRespVO {
+
+    @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "24988")
+    private Long id;
+
+    @Schema(description = "会话所属用户", requiredMode = Schema.RequiredMode.REQUIRED, example = "8300")
+    private Long userId;
+
+    @Schema(description = "最后聊天时间", requiredMode = Schema.RequiredMode.REQUIRED,example = "2024-01-01 00:00:00")
+    private LocalDateTime lastMessageTime;
+
+    @Schema(description = "最后聊天内容", requiredMode = Schema.RequiredMode.REQUIRED,example = "嗨，您好啊")
+    private String lastMessageContent;
+
+    @Schema(description = "最后发送的消息类型", requiredMode = Schema.RequiredMode.REQUIRED,example = "1")
+    private Integer lastMessageContentType;
+
+    @Schema(description = "管理端置顶", requiredMode = Schema.RequiredMode.REQUIRED,example = "false")
+    private Boolean adminPinned;
+
+    @Schema(description = "用户是否可见", requiredMode = Schema.RequiredMode.REQUIRED,example = "true")
+    private Boolean userDeleted;
+
+    @Schema(description = "管理员是否可见", requiredMode = Schema.RequiredMode.REQUIRED,example = "true")
+    private Boolean adminDeleted;
+
+    @Schema(description = "管理员未读消息数", requiredMode = Schema.RequiredMode.REQUIRED,example = "6")
+    private Integer adminUnreadMessageCount;
+
+    @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED,example = "2024-01-01 00:00:00")
+    private LocalDateTime createTime;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/conversation/KeFuConversationUpdatePinnedReqVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/conversation/KeFuConversationUpdatePinnedReqVO.java
new file mode 100644
index 000000000..235f78227
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/conversation/KeFuConversationUpdatePinnedReqVO.java
@@ -0,0 +1,19 @@
+package cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.conversation;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotNull;
+import lombok.Data;
+
+@Schema(description = "管理后台 - 客服会话置顶 Request VO")
+@Data
+public class KeFuConversationUpdatePinnedReqVO {
+
+    @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "23202")
+    @NotNull(message = "会话编号，不能为空")
+    private Long id;
+
+    @Schema(description = "管理端置顶", requiredMode = Schema.RequiredMode.REQUIRED, example = "false")
+    @NotNull(message = "管理端置顶，不能为空")
+    private Boolean adminPinned;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessagePageReqVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessagePageReqVO.java
new file mode 100644
index 000000000..ec5e7261c
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessagePageReqVO.java
@@ -0,0 +1,16 @@
+package cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message;
+
+import lombok.*;
+import io.swagger.v3.oas.annotations.media.Schema;
+import cn.iocoder.yudao.framework.common.pojo.PageParam;
+
+@Schema(description = "管理后台 - 客服消息分页 Request VO")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+public class KeFuMessagePageReqVO extends PageParam {
+
+    @Schema(description = "会话编号", example = "12580")
+    private Long conversationId;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessageRespVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessageRespVO.java
new file mode 100644
index 000000000..41f9c52f6
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessageRespVO.java
@@ -0,0 +1,43 @@
+package cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.*;
+
+import java.time.LocalDateTime;
+import com.alibaba.excel.annotation.*;
+
+@Schema(description = "管理后台 - 客服消息 Response VO")
+@Data
+public class KeFuMessageRespVO {
+
+    @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "23202")
+    private Long id;
+
+    @Schema(description = "会话编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "12580")
+    private Long conversationId;
+
+    @Schema(description = "发送人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "24571")
+    private Long senderId;
+
+    @Schema(description = "发送人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    private Integer senderType;
+
+    @Schema(description = "接收人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "29124")
+    private Long receiverId;
+
+    @Schema(description = "接收人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
+    private Integer receiverType;
+
+    @Schema(description = "消息类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    private Integer contentType;
+
+    @Schema(description = "消息", requiredMode = Schema.RequiredMode.REQUIRED)
+    private String content;
+
+    @Schema(description = "是否已读", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    private Boolean readStatus;
+
+    @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED)
+    private LocalDateTime createTime;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessageSendReqVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessageSendReqVO.java
new file mode 100644
index 000000000..5ac8f04c4
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/kefu/vo/message/KeFuMessageSendReqVO.java
@@ -0,0 +1,43 @@
+package cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import lombok.Data;
+
+@Schema(description = "管理后台 - 发送客服消息 Request VO")
+@Data
+public class KeFuMessageSendReqVO {
+
+    @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "23202")
+    private Long id;
+
+    @Schema(description = "会话编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "12580")
+    @NotNull(message = "会话编号不能为空")
+    private Long conversationId;
+
+    @Schema(description = "发送人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "24571")
+    @NotNull(message = "发送人编号不能为空")
+    private Long senderId;
+
+    @Schema(description = "发送人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    @NotNull(message = "发送人类型不能为空")
+    private Integer senderType;
+
+    @Schema(description = "接收人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "29124")
+    @NotNull(message = "接收人编号不能为空")
+    private Long receiverId;
+
+    @Schema(description = "接收人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
+    @NotNull(message = "接收人类型不能为空")
+    private Integer receiverType;
+
+    @Schema(description = "消息类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    @NotNull(message = "消息类型不能为空")
+    private Integer contentType;
+
+    @Schema(description = "消息", requiredMode = Schema.RequiredMode.REQUIRED)
+    @NotEmpty(message = "消息不能为空")
+    private String content;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/AppKeFuConversationController.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/AppKeFuConversationController.java
new file mode 100644
index 000000000..15c0e2892
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/AppKeFuConversationController.java
@@ -0,0 +1,35 @@
+package cn.iocoder.yudao.module.promotion.controller.app.kefu;
+
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
+import cn.iocoder.yudao.framework.security.core.annotations.PreAuthenticated;
+import cn.iocoder.yudao.module.promotion.controller.app.kefu.vo.conversation.AppKeFuConversationRespVO;
+import cn.iocoder.yudao.module.promotion.service.kefu.KeFuConversationService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
+import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId;
+
+@Tag(name = "用户 APP - 客户会话")
+@RestController
+@RequestMapping("/promotion/kefu-conversation")
+@Validated
+public class AppKeFuConversationController {
+
+    @Resource
+    private KeFuConversationService conversationService;
+
+    @GetMapping("/get")
+    @Operation(summary = "获得客服会话")
+    @PreAuthenticated
+    public CommonResult<AppKeFuConversationRespVO> getDiyPage() {
+        return success(BeanUtils.toBean(conversationService.getOrCreateConversation(getLoginUserId()), AppKeFuConversationRespVO.class));
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/AppKeFuMessageController.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/AppKeFuMessageController.java
new file mode 100644
index 000000000..1af72dba7
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/AppKeFuMessageController.java
@@ -0,0 +1,58 @@
+package cn.iocoder.yudao.module.promotion.controller.app.kefu;
+
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
+import cn.iocoder.yudao.framework.security.core.annotations.PreAuthenticated;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessagePageReqVO;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessageRespVO;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessageSendReqVO;
+import cn.iocoder.yudao.module.promotion.controller.app.kefu.vo.message.AppKeFuMessageSendReqVO;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuMessageDO;
+import cn.iocoder.yudao.module.promotion.service.kefu.KeFuMessageService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
+import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId;
+
+@Tag(name = "管理后台 - 客服消息")
+@RestController
+@RequestMapping("/promotion/kefu-message")
+@Validated
+public class AppKeFuMessageController {
+
+    @Resource
+    private KeFuMessageService kefuMessageService;
+
+    @PostMapping("/send")
+    @Operation(summary = "发送客服消息")
+    @PreAuthenticated
+    public CommonResult<Long> createKefuMessage(@Valid @RequestBody AppKeFuMessageSendReqVO sendReqVO) {
+        return success(kefuMessageService.sendKefuMessage(BeanUtils.toBean(sendReqVO, KeFuMessageSendReqVO.class)));
+    }
+
+    @PutMapping("/update-read-status")
+    @Operation(summary = "更新客服消息已读状态")
+    @Parameter(name = "conversationId", description = "会话编号", required = true)
+    @PreAuthenticated
+    public CommonResult<Boolean> updateKefuMessageReadStatus(@RequestParam("conversationId") Long conversationId) {
+        kefuMessageService.updateKefuMessageReadStatus(conversationId, getLoginUserId());
+        return success(true);
+    }
+
+    @GetMapping("/page")
+    @Operation(summary = "获得客服消息分页")
+    @PreAuthenticated
+    public CommonResult<PageResult<KeFuMessageRespVO>> getKefuMessagePage(@Valid KeFuMessagePageReqVO pageReqVO) {
+        PageResult<KeFuMessageDO> pageResult = kefuMessageService.getKefuMessagePage(pageReqVO);
+        return success(BeanUtils.toBean(pageResult, KeFuMessageRespVO.class));
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/conversation/AppKeFuConversationRespVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/conversation/AppKeFuConversationRespVO.java
new file mode 100644
index 000000000..39a295dc1
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/conversation/AppKeFuConversationRespVO.java
@@ -0,0 +1,42 @@
+package cn.iocoder.yudao.module.promotion.controller.app.kefu.vo.conversation;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.*;
+
+import java.time.LocalDateTime;
+
+@Schema(description = "用户 App - 客服会话 Response VO")
+@Data
+public class AppKeFuConversationRespVO {
+
+    @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "24988")
+    private Long id;
+
+    @Schema(description = "会话所属用户", requiredMode = Schema.RequiredMode.REQUIRED, example = "8300")
+    private Long userId;
+
+    @Schema(description = "最后聊天时间", requiredMode = Schema.RequiredMode.REQUIRED,example = "2024-01-01 00:00:00")
+    private LocalDateTime lastMessageTime;
+
+    @Schema(description = "最后聊天内容", requiredMode = Schema.RequiredMode.REQUIRED,example = "嗨，您好啊")
+    private String lastMessageContent;
+
+    @Schema(description = "最后发送的消息类型", requiredMode = Schema.RequiredMode.REQUIRED,example = "1")
+    private Integer lastMessageContentType;
+
+    @Schema(description = "管理端置顶", requiredMode = Schema.RequiredMode.REQUIRED,example = "false")
+    private Boolean adminPinned;
+
+    @Schema(description = "用户是否可见", requiredMode = Schema.RequiredMode.REQUIRED,example = "true")
+    private Boolean userDeleted;
+
+    @Schema(description = "管理员是否可见", requiredMode = Schema.RequiredMode.REQUIRED,example = "true")
+    private Boolean adminDeleted;
+
+    @Schema(description = "管理员未读消息数", requiredMode = Schema.RequiredMode.REQUIRED,example = "6")
+    private Integer adminUnreadMessageCount;
+
+    @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED,example = "2024-01-01 00:00:00")
+    private LocalDateTime createTime;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessagePageReqVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessagePageReqVO.java
new file mode 100644
index 000000000..a332d34ad
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessagePageReqVO.java
@@ -0,0 +1,18 @@
+package cn.iocoder.yudao.module.promotion.controller.app.kefu.vo.message;
+
+import cn.iocoder.yudao.framework.common.pojo.PageParam;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+
+@Schema(description = "用户 App - 客服消息分页 Request VO")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+public class AppKeFuMessagePageReqVO extends PageParam {
+
+    @Schema(description = "会话编号", example = "12580")
+    private Long conversationId;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessageRespVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessageRespVO.java
new file mode 100644
index 000000000..fb7331afc
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessageRespVO.java
@@ -0,0 +1,42 @@
+package cn.iocoder.yudao.module.promotion.controller.app.kefu.vo.message;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Schema(description = "用户 App - 客服消息 Response VO")
+@Data
+public class AppKeFuMessageRespVO {
+
+    @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "23202")
+    private Long id;
+
+    @Schema(description = "会话编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "12580")
+    private Long conversationId;
+
+    @Schema(description = "发送人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "24571")
+    private Long senderId;
+
+    @Schema(description = "发送人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    private Integer senderType;
+
+    @Schema(description = "接收人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "29124")
+    private Long receiverId;
+
+    @Schema(description = "接收人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
+    private Integer receiverType;
+
+    @Schema(description = "消息类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    private Integer contentType;
+
+    @Schema(description = "消息", requiredMode = Schema.RequiredMode.REQUIRED)
+    private String content;
+
+    @Schema(description = "是否已读", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    private Boolean readStatus;
+
+    @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED)
+    private LocalDateTime createTime;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessageSendReqVO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessageSendReqVO.java
new file mode 100644
index 000000000..f2de632da
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/app/kefu/vo/message/AppKeFuMessageSendReqVO.java
@@ -0,0 +1,43 @@
+package cn.iocoder.yudao.module.promotion.controller.app.kefu.vo.message;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import lombok.Data;
+
+@Schema(description = "用户 App - 发送客服消息 Request VO")
+@Data
+public class AppKeFuMessageSendReqVO {
+
+    @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "23202")
+    private Long id;
+
+    @Schema(description = "会话编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "12580")
+    @NotNull(message = "会话编号不能为空")
+    private Long conversationId;
+
+    @Schema(description = "发送人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "24571")
+    @NotNull(message = "发送人编号不能为空")
+    private Long senderId;
+
+    @Schema(description = "发送人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    @NotNull(message = "发送人类型不能为空")
+    private Integer senderType;
+
+    @Schema(description = "接收人编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "29124")
+    @NotNull(message = "接收人编号不能为空")
+    private Long receiverId;
+
+    @Schema(description = "接收人类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "2")
+    @NotNull(message = "接收人类型不能为空")
+    private Integer receiverType;
+
+    @Schema(description = "消息类型", requiredMode = Schema.RequiredMode.REQUIRED, example = "1")
+    @NotNull(message = "消息类型不能为空")
+    private Integer contentType;
+
+    @Schema(description = "消息", requiredMode = Schema.RequiredMode.REQUIRED)
+    @NotEmpty(message = "消息不能为空")
+    private String content;
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/kefu/KeFuConversationDO.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/kefu/KeFuConversationDO.java
index 04432eebe..e9a73284f 100644
--- a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/kefu/KeFuConversationDO.java
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/dataobject/kefu/KeFuConversationDO.java
@@ -61,15 +61,15 @@ public class KeFuConversationDO extends BaseDO {
     /**
      * 用户是否可见
      *
-     * true - 可见，默认值
-     * false - 不可见，用户删除时设置为 false
+     * false - 可见，默认值
+     * true - 不可见，用户删除时设置为 true
      */
     private Boolean userDeleted;
     /**
      * 管理员是否可见
      *
-     * true - 可见，默认值
-     * false - 不可见，管理员删除时设置为 false
+     * false - 可见，默认值
+     * true - 不可见，管理员删除时设置为 true
      */
     private Boolean adminDeleted;
 
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/mysql/kefu/KeFuConversationMapper.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/mysql/kefu/KeFuConversationMapper.java
new file mode 100644
index 000000000..eae9b7401
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/mysql/kefu/KeFuConversationMapper.java
@@ -0,0 +1,38 @@
+package cn.iocoder.yudao.module.promotion.dal.mysql.kefu;
+
+import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
+import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuConversationDO;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+/**
+ * 客服会话 Mapper
+ *
+ * @author HUIHUI
+ */
+@Mapper
+public interface KeFuConversationMapper extends BaseMapperX<KeFuConversationDO> {
+
+    default List<KeFuConversationDO> selectListWithSort() {
+        return selectList(new LambdaQueryWrapperX<KeFuConversationDO>()
+                .eq(KeFuConversationDO::getAdminDeleted, Boolean.FALSE)
+                .orderByDesc(KeFuConversationDO::getAdminPinned) // 置顶优先
+                .orderByDesc(KeFuConversationDO::getCreateTime));
+    }
+
+    default void updateAdminUnreadMessageCountByConversationId(Long id, Integer count) {
+        LambdaUpdateWrapper<KeFuConversationDO> updateWrapper = new LambdaUpdateWrapper<>();
+        updateWrapper.eq(KeFuConversationDO::getId, id);
+        if (count != null && count > 0) { // 情况一：会员发送消息时增加管理员的未读消息数
+            updateWrapper.setSql("admin_unread_message_count = admin_unread_message_count + 1");
+        } else { // 情况二：管理员已读后重置
+            updateWrapper.set(KeFuConversationDO::getAdminUnreadMessageCount, 0);
+        }
+
+        update(updateWrapper);
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/mysql/kefu/KeFuMessageMapper.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/mysql/kefu/KeFuMessageMapper.java
new file mode 100644
index 000000000..5ec0a6cd9
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/dal/mysql/kefu/KeFuMessageMapper.java
@@ -0,0 +1,42 @@
+package cn.iocoder.yudao.module.promotion.dal.mysql.kefu;
+
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
+import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessagePageReqVO;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuMessageDO;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * 客服消息 Mapper
+ *
+ * @author HUIHUI
+ */
+@Mapper
+public interface KeFuMessageMapper extends BaseMapperX<KeFuMessageDO> {
+
+    default PageResult<KeFuMessageDO> selectPage(KeFuMessagePageReqVO reqVO) {
+        return selectPage(reqVO, new LambdaQueryWrapperX<KeFuMessageDO>()
+                .eqIfPresent(KeFuMessageDO::getConversationId, reqVO.getConversationId())
+                .orderByDesc(KeFuMessageDO::getId));
+    }
+
+    default List<KeFuMessageDO> selectListByConversationIdAndReceiverIdAndReadStatus(Long conversationId, Long receiverId, Boolean readStatus) {
+        return selectList(new LambdaQueryWrapper<KeFuMessageDO>()
+                .eq(KeFuMessageDO::getConversationId, conversationId)
+                .eq(KeFuMessageDO::getReceiverId, receiverId)
+                .eq(KeFuMessageDO::getReadStatus, readStatus));
+    }
+
+    default void updateReadStstusBatchByIds(Collection<Long> ids, Boolean readStatus) {
+        update(new LambdaUpdateWrapper<KeFuMessageDO>()
+                .in(KeFuMessageDO::getId, ids)
+                .set(KeFuMessageDO::getReadStatus, readStatus));
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuConversationService.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuConversationService.java
new file mode 100644
index 000000000..828626310
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuConversationService.java
@@ -0,0 +1,78 @@
+package cn.iocoder.yudao.module.promotion.service.kefu;
+
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.conversation.KeFuConversationUpdatePinnedReqVO;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuConversationDO;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * 客服会话 Service 接口
+ *
+ * @author HUIHUI
+ */
+public interface KeFuConversationService {
+
+    /**
+     * 删除客服会话
+     *
+     * @param id 编号
+     */
+    void deleteKefuConversation(Long id);
+
+    /**
+     * 客服会话置顶
+     *
+     * @param updateReqVO 请求
+     */
+    void updatePinned(KeFuConversationUpdatePinnedReqVO updateReqVO);
+
+    /**
+     * 更新会话客服消息冗余信息
+     *
+     * @param id                     编号
+     * @param lastMessageTime        最后聊天时间
+     * @param lastMessageContent     最后聊天内容
+     * @param lastMessageContentType 最后聊天内容类型
+     */
+    void updateConversationMessage(Long id, LocalDateTime lastMessageTime, String lastMessageContent, Integer lastMessageContentType);
+
+    /**
+     * 更新管理员未读消息数
+     *
+     * @param id    编号
+     * @param count 数量：0 则重置 1 则消息数加一
+     */
+    void updateAdminUnreadMessageCountByConversationId(Long id, Integer count);
+
+    /**
+     * 更新会话对于管理员是否可见
+     *
+     * @param adminDeleted 管理员是否可见
+     */
+    void updateConversationAdminDeleted(Long id, Boolean adminDeleted);
+
+    /**
+     * 获得客服会话列表
+     *
+     * @return 会话列表
+     */
+    List<KeFuConversationDO> getKefuConversationList();
+
+    /**
+     * 获得或创建会话
+     *
+     * @param userId 用户编号
+     * @return 客服会话
+     */
+    KeFuConversationDO getOrCreateConversation(Long userId);
+
+    /**
+     * 校验客服会话是否存在
+     *
+     * @param id 编号
+     * @return 客服会话
+     */
+    KeFuConversationDO validateKefuConversationExists(Long id);
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuConversationServiceImpl.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuConversationServiceImpl.java
new file mode 100644
index 000000000..416e613ff
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuConversationServiceImpl.java
@@ -0,0 +1,88 @@
+package cn.iocoder.yudao.module.promotion.service.kefu;
+
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.conversation.KeFuConversationUpdatePinnedReqVO;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuConversationDO;
+import cn.iocoder.yudao.module.promotion.dal.mysql.kefu.KeFuConversationMapper;
+import cn.iocoder.yudao.module.promotion.enums.kehu.KeFuMessageContentTypeEnum;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Service;
+import org.springframework.validation.annotation.Validated;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static cn.iocoder.yudao.module.promotion.enums.ErrorCodeConstants.KEFU_CONVERSATION_NOT_EXISTS;
+
+/**
+ * 客服会话 Service 实现类
+ *
+ * @author HUIHUI
+ */
+@Service
+@Validated
+public class KeFuConversationServiceImpl implements KeFuConversationService {
+
+    @Resource
+    private KeFuConversationMapper conversationMapper;
+
+    @Override
+    public void deleteKefuConversation(Long id) {
+        // 校验存在
+        validateKefuConversationExists(id);
+
+        // 只有管理员端可以删除会话，也不真的删，只是管理员端看不到啦
+        conversationMapper.updateById(new KeFuConversationDO().setId(id).setAdminDeleted(Boolean.TRUE));
+    }
+
+    @Override
+    public void updatePinned(KeFuConversationUpdatePinnedReqVO updateReqVO) {
+        // 只有管理员端可以置顶会话
+        conversationMapper.updateById(new KeFuConversationDO().setId(updateReqVO.getId()).setAdminPinned(updateReqVO.getAdminPinned()));
+    }
+
+    @Override
+    public void updateConversationMessage(Long id, LocalDateTime lastMessageTime, String lastMessageContent, Integer lastMessageContentType) {
+        conversationMapper.updateById(new KeFuConversationDO().setId(id).setLastMessageTime(lastMessageTime)
+                .setLastMessageContent(lastMessageContent).setLastMessageContentType(lastMessageContentType));
+    }
+
+    @Override
+    public void updateAdminUnreadMessageCountByConversationId(Long id, Integer count) {
+        conversationMapper.updateAdminUnreadMessageCountByConversationId(id, count);
+    }
+
+    @Override
+    public void updateConversationAdminDeleted(Long id, Boolean adminDeleted) {
+        conversationMapper.updateById(new KeFuConversationDO().setId(id).setAdminDeleted(adminDeleted));
+    }
+
+    @Override
+    public List<KeFuConversationDO> getKefuConversationList() {
+        return conversationMapper.selectListWithSort();
+    }
+
+    @Override
+    public KeFuConversationDO getOrCreateConversation(Long userId) {
+        KeFuConversationDO conversation = conversationMapper.selectOne(KeFuConversationDO::getUserId, userId);
+        if (conversation == null) { // 没有历史会话则初始化一个新会话
+            conversation = new KeFuConversationDO().setUserId(userId).setLastMessageTime(LocalDateTime.now())
+                    .setLastMessageContent("").setLastMessageContentType(KeFuMessageContentTypeEnum.TEXT.getType())
+                    .setAdminPinned(Boolean.FALSE).setUserDeleted(Boolean.FALSE).setAdminDeleted(Boolean.FALSE)
+                    .setAdminUnreadMessageCount(0);
+            conversationMapper.insert(conversation);
+        }
+        return conversation;
+    }
+
+    @Override
+    public KeFuConversationDO validateKefuConversationExists(Long id) {
+        KeFuConversationDO conversationDO = conversationMapper.selectById(id);
+        if (conversationDO == null) {
+            throw exception(KEFU_CONVERSATION_NOT_EXISTS);
+        }
+
+        return conversationDO;
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuMessageService.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuMessageService.java
new file mode 100644
index 000000000..10d5aca32
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuMessageService.java
@@ -0,0 +1,40 @@
+package cn.iocoder.yudao.module.promotion.service.kefu;
+
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessagePageReqVO;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessageSendReqVO;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuMessageDO;
+import jakarta.validation.Valid;
+
+/**
+ * 客服消息 Service 接口
+ *
+ * @author HUIHUI
+ */
+public interface KeFuMessageService {
+
+    /**
+     * 发送客服消息
+     *
+     * @param sendReqVO 信息
+     * @return 编号
+     */
+    Long sendKefuMessage(@Valid KeFuMessageSendReqVO sendReqVO);
+
+    /**
+     * 更新消息已读状态
+     *
+     * @param conversationId 会话编号
+     * @param receiverId     用户编号
+     */
+    void updateKefuMessageReadStatus(Long conversationId, Long receiverId);
+
+    /**
+     * 获得客服消息分页
+     *
+     * @param pageReqVO 分页查询
+     * @return 客服消息分页
+     */
+    PageResult<KeFuMessageDO> getKefuMessagePage(KeFuMessagePageReqVO pageReqVO);
+
+}
\ No newline at end of file
diff --git a/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuMessageServiceImpl.java b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuMessageServiceImpl.java
new file mode 100644
index 000000000..ff6224407
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/service/kefu/KeFuMessageServiceImpl.java
@@ -0,0 +1,128 @@
+package cn.iocoder.yudao.module.promotion.service.kefu;
+
+import cn.hutool.core.collection.CollUtil;
+import cn.hutool.extra.spring.SpringUtil;
+import cn.iocoder.yudao.framework.common.enums.UserTypeEnum;
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
+import cn.iocoder.yudao.module.infra.api.websocket.WebSocketSenderApi;
+import cn.iocoder.yudao.module.member.api.user.MemberUserApi;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessagePageReqVO;
+import cn.iocoder.yudao.module.promotion.controller.admin.kefu.vo.message.KeFuMessageSendReqVO;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuConversationDO;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.kefu.KeFuMessageDO;
+import cn.iocoder.yudao.module.promotion.dal.mysql.kefu.KeFuMessageMapper;
+import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
+import jakarta.annotation.Resource;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.validation.annotation.Validated;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertSet;
+import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.getFirst;
+
+/**
+ * 客服消息 Service 实现类
+ *
+ * @author HUIHUI
+ */
+@Service
+@Validated
+public class KeFuMessageServiceImpl implements KeFuMessageService {
+
+    private static final String KEFU_MESSAGE_TYPE = "kefu_message_type"; // 客服消息类型
+
+    @Resource
+    private KeFuMessageMapper messageMapper;
+    @Resource
+    private KeFuConversationService conversationService;
+    @Resource
+    private AdminUserApi adminUserApi;
+    @Resource
+    private MemberUserApi memberUserApi;
+    @Resource
+    private WebSocketSenderApi webSocketSenderApi;
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Long sendKefuMessage(KeFuMessageSendReqVO sendReqVO) {
+        // 1.1 校验会话是否存在
+        KeFuConversationDO conversation = conversationService.validateKefuConversationExists(sendReqVO.getConversationId());
+        // 1.2 校验接收人是否存在
+        validateReceiverExist(sendReqVO.getReceiverId(), sendReqVO.getReceiverType());
+
+        // 2.1 保存消息
+        KeFuMessageDO kefuMessage = BeanUtils.toBean(sendReqVO, KeFuMessageDO.class);
+        messageMapper.insert(kefuMessage);
+        // 2.2 更新会话消息冗余
+        conversationService.updateConversationMessage(kefuMessage.getConversationId(), LocalDateTime.now(),
+                kefuMessage.getContent(), kefuMessage.getContentType());
+        // 2.3 更新管理员未读消息数
+        if (UserTypeEnum.ADMIN.getValue().equals(kefuMessage.getReceiverType())) {
+            conversationService.updateAdminUnreadMessageCountByConversationId(kefuMessage.getConversationId(), 1);
+        }
+        // 2.4 会员用户发送消息时，如果管理员删除过会话则进行恢复
+        if (UserTypeEnum.MEMBER.getValue().equals(kefuMessage.getSenderType()) && Boolean.TRUE.equals(conversation.getAdminDeleted())) {
+            conversationService.updateConversationAdminDeleted(kefuMessage.getConversationId(), Boolean.FALSE);
+        }
+
+        // 3. 发送消息
+        getSelf().sendAsyncMessage(sendReqVO.getReceiverType(), sendReqVO.getReceiverId(), kefuMessage);
+
+        // 返回
+        return kefuMessage.getId();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void updateKefuMessageReadStatus(Long conversationId, Long receiverId) {
+        // 1.1 校验会话是否存在
+        conversationService.validateKefuConversationExists(conversationId);
+        // 1.2 查询接收人所有的未读消息
+        List<KeFuMessageDO> messageList = messageMapper.selectListByConversationIdAndReceiverIdAndReadStatus(
+                conversationId, receiverId, Boolean.FALSE);
+        // 1.3 情况一：没有未读消息
+        if (CollUtil.isEmpty(messageList)) {
+            return;
+        }
+
+        // 2.1 情况二：更新未读消息状态为已读
+        messageMapper.updateReadStstusBatchByIds(convertSet(messageList, KeFuMessageDO::getId), Boolean.TRUE);
+        // 2.2 更新管理员未读消息数
+        KeFuMessageDO message = getFirst(messageList);
+        assert message != null;
+        if (UserTypeEnum.ADMIN.getValue().equals(message.getReceiverType())) {
+            conversationService.updateAdminUnreadMessageCountByConversationId(conversationId, 0);
+        }
+        // 2.3 发送消息通知发送者，接收者已读 -> 发送者更新发送的消息状态
+        getSelf().sendAsyncMessage(message.getSenderType(), message.getSenderId(), "keFuMessageReadStatusChange");
+    }
+
+    private void validateReceiverExist(Long receiverId, Integer receiverType) {
+        if (UserTypeEnum.ADMIN.getValue().equals(receiverType)) {
+            adminUserApi.validateUser(receiverId);
+        }
+        if (UserTypeEnum.MEMBER.getValue().equals(receiverType)) {
+            memberUserApi.validateUser(receiverId);
+        }
+    }
+
+    @Async
+    public void sendAsyncMessage(Integer userType, Long userId, Object content) {
+        webSocketSenderApi.sendObject(userType, userId, KEFU_MESSAGE_TYPE, content);
+    }
+
+    @Override
+    public PageResult<KeFuMessageDO> getKefuMessagePage(KeFuMessagePageReqVO pageReqVO) {
+        return messageMapper.selectPage(pageReqVO);
+    }
+
+    private KeFuMessageServiceImpl getSelf() {
+        return SpringUtil.getBean(getClass());
+    }
+
+}
\ No newline at end of file
diff --git a/yudao-module-member/yudao-module-member-api/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApi.java b/yudao-module-member/yudao-module-member-api/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApi.java
index c9fb80100..da74aaa92 100644
--- a/yudao-module-member/yudao-module-member-api/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApi.java
+++ b/yudao-module-member/yudao-module-member-api/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApi.java
@@ -57,4 +57,12 @@ public interface MemberUserApi {
      * @return 用户信息
      */
     MemberUserRespDTO getUserByMobile(String mobile);
+
+    /**
+     * 校验用户是否存在
+     *
+     * @param id 用户编号
+     */
+    void validateUser(Long id);
+
 }
diff --git a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApiImpl.java b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApiImpl.java
index 659c39b57..960930ddc 100644
--- a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApiImpl.java
+++ b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/api/user/MemberUserApiImpl.java
@@ -11,6 +11,9 @@ import jakarta.annotation.Resource;
 import java.util.Collection;
 import java.util.List;
 
+import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static cn.iocoder.yudao.module.member.enums.ErrorCodeConstants.USER_MOBILE_NOT_EXISTS;
+
 /**
  * 会员用户的 API 实现类
  *
@@ -44,4 +47,12 @@ public class MemberUserApiImpl implements MemberUserApi {
         return MemberUserConvert.INSTANCE.convert2(userService.getUserByMobile(mobile));
     }
 
+    @Override
+    public void validateUser(Long id) {
+        MemberUserDO user = userService.getUser(id);
+        if (user == null) {
+            throw exception(USER_MOBILE_NOT_EXISTS);
+        }
+    }
+
 }