测试公众号，appid：wx20b78850380d9f1b，后台限制有根据openid群发的接口权限

但是调用https://api.weixin.qq.com/cgi-bin/message/mass/send 群发接口，返回错误

{
    "errcode": 48001,
    "errmsg": "api unauthorized rid: 666c0fbf-67942cdd-686e21e6"
}