diff --git a/WeMini/Custom.php b/WeMini/Custom.php
index 9c518f0..39cc378 100644
--- a/WeMini/Custom.php
+++ b/WeMini/Custom.php
@@ -25,9 +25,22 @@ use WeChat\Contracts\BasicWeChat;
 class Custom extends BasicWeChat
 {
 
+    /**
+     * 发送小程序客服消息
+     * @param array $data
+     * @return array
+     * @throws \WeChat\Exceptions\InvalidResponseException
+     * @throws \WeChat\Exceptions\LocalCacheException
+     */
+    public function sendCustomMessage($data)
+    {
+        $url = 'https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=ACCESS_TOKEN';
+        return $this->callPostApi($url, $data, true);
+    }
+
     /**
      * 创建商户
-     * @param array $data 商户资料
+     * @param array $data
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -40,7 +53,7 @@ class Custom extends BasicWeChat
 
     /**
      * 更新商户信息
-     * @param array $data 商户资料
+     * @param array $data
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -53,8 +66,8 @@ class Custom extends BasicWeChat
 
 
     /**
-     * 查询单个商户
-     * @param array $data 查询参数
+     * 拉取单个商户信息
+     * @param array $data
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -67,8 +80,8 @@ class Custom extends BasicWeChat
 
 
     /**
-     * 查询商户列表
-     * @param array $data 查询参数
+     * 拉取多个商户信息
+     * @param array $data
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -81,7 +94,7 @@ class Custom extends BasicWeChat
 
     /**
      * 发送客服消息
-     * @param array $data 消息体（touser, msgtype, content 等）
+     * @param array $data
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -94,7 +107,7 @@ class Custom extends BasicWeChat
 
     /**
      * 客服输入状态
-     * @param array $data 输入状态参数
+     * @param array $data
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -107,8 +120,8 @@ class Custom extends BasicWeChat
 
 
     /**
-     * 获取客服列表
-     * @param string $business_id 子商户 business_id，普通小程序可为空
+     * 获取客服基本信息
+     * @param string $business_id 客服子商户的business_id，对于普通小程序客服不需要填business_id
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -125,7 +138,7 @@ class Custom extends BasicWeChat
 
     /**
      * 获取在线客服列表
-     * @param string $business_id 子商户 business_id，普通小程序可为空
+     * @param string $business_id 客服子商户的business_id，对于普通小程序客服不需要填business_id
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -141,8 +154,8 @@ class Custom extends BasicWeChat
 
 
     /**
-     * 新增客服账号
-     * @param array $data 账号参数
+     * 客服输入状态
+     * @param array $data
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -156,8 +169,8 @@ class Custom extends BasicWeChat
 
     /**
      * 删除客服账号
-     * @param string $kf_openid 客服 openid
-     * @param string $business_id 子商户 business_id，可为空
+     * @param string $kf_openid 客服openid
+     * @param string $business_id 客服子商户的business_id，对于普通小程序客服不需要填business_id
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -173,8 +186,8 @@ class Custom extends BasicWeChat
 
     /**
      * 设置客服管理员
-     * @param string $kf_openid 客服 openid
-     * @param string $business_id 子商户 business_id，可为空
+     * @param string $kf_openid 客服openid
+     * @param string $business_id 客服子商户的business_id，对于普通小程序客服不需要填business_id
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
@@ -191,8 +204,8 @@ class Custom extends BasicWeChat
 
     /**
      * 取消客服管理员
-     * @param string $kf_openid 客服 openid
-     * @param string $business_id 子商户 business_id，可为空
+     * @param string $kf_openid 客服openid
+     * @param string $business_id 客服子商户的business_id，对于普通小程序客服不需要填business_id
      * @return array
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException