{"errcode":40096,"errmsg":"invalid external userid, hint: [1647310300304014225074204], from ip: 111.231.141.181, more info at https://open.work.weixin.qq.com/devtool/query?e=40096","fail_list":[]}

操作步骤：

1 js-sdk调用外部联系人选人接口，获取到外部联系人userid,

2 调用后端接口/cgi-bin/externalcontact/add_msg_template发送企业客户消息，入参为步骤1获取的外部联系人userid

消息发送失败