前期咨询过小程序是否可以主动向用户推送信息，得到的回复是：大部分行业是只能客户主动订阅以后推送开发者可以不限时间地点的推送一条信息，但是每次订阅仅推送一条。长期性订阅消息仅向政务民生、医疗、交通、金融、教育等线下公共服务开放。 但是在我自己日常使用中发现普通零售行业的小程序，就可以实现每次我消费以后可以主动给我推送消费信息，不需要我订阅，且第二天再把我的消费订单号主动推送给我，请问这种是怎么实现的呢？这不属于消息订阅吗？如下面两张图。 [图片] [图片]

https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi

目前知道的方案是需要用户主动访问小程序，如果授过权，可以通过wxCode换取unionId。有没有后端相关的接口可以根据小程序的openId获取unionId？ 下图这个接口试了下返回： {     "errcode": 48001,     "errmsg": "api unauthorized rid: 6077e724-34a65409-36d123ef" } 这个接口是不是只有微信公众号才能使用，小程序不行？ [图片]

请求的格式是： {"button":[{"type":"click","name":"开发","sub_button":[{"type":"view","name":"开源文档1.0","url":"https://www.baidu.com/"},{"type":"view","name":"开发工具包1.0"},{"type":"media_id","name":"开发项目3.0","media_id":"aCpLWXEKVO0Cz4135snn3Cm5EWxLqHy4lBy4vGB2f0E"},{"type":"click","name":"开发语音包1.0"}]},{"type":"click","name":"了解更多"},{"type":"click","name":"测试","sub_button":[{"type":"view","name":"测试一下","url":"https://www.baidu.com/"}]}]}

这段时间非常频繁，同一个 access_token 有时没有问题，有时有说过期。下面是日志 同一个access_token ============================================成功的=============================================== [[[接口调用]]] [2019/8/26 13:56:04] [线程：15]     URL：https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=24_pppFPnAEMqvoe9tPpJSHg-iK8fnINfL5bG4lpvtWwb9XFD_elm_aM-vLlerMcGZiwf8oYrYy8I-Gvrft0b3s3lkzWUpdi12kBjs8AVfcf1fJ0glOR_aoJUOISxhlij1J_UVB8EsLwMitTt9DVEJiAHACLQ     Result： {"errcode":0,"errmsg":"ok"} =======================================失败的========================= [[[接口调用]]] [2019/8/26 13:56:04] [线程：15]     URL：https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=24_pppFPnAEMqvoe9tPpJSHg-iK8fnINfL5bG4lpvtWwb9XFD_elm_aM-vLlerMcGZiwf8oYrYy8I-Gvrft0b3s3lkzWUpdi12kBjs8AVfcf1fJ0glOR_aoJUOISxhlij1J_UVB8EsLwMitTt9DVEJiAHACLQ     Result： {"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest hint: [7y0Q_a0964z200!]"} =============================================成功的============================================== [[[接口调用]]] [2019/8/26 13:56:08] [线程：8]     URL：https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=24_pppFPnAEMqvoe9tPpJSHg-iK8fnINfL5bG4lpvtWwb9XFD_elm_aM-vLlerMcGZiwf8oYrYy8I-Gvrft0b3s3lkzWUpdi12kBjs8AVfcf1fJ0glOR_aoJUOISxhlij1J_UVB8EsLwMitTt9DVEJiAHACLQ     Result： {"errcode":0,"errmsg":"ok","msgid":959769122332639232} [[[接口调用]]] [2019/8/26 13:56:08] [线程：8]     URL：https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=24_pppFPnAEMqvoe9tPpJSHg-iK8fnINfL5bG4lpvtWwb9XFD_elm_aM-vLlerMcGZiwf8oYrYy8I-Gvrft0b3s3lkzWUpdi12kBjs8AVfcf1fJ0glOR_aoJUOISxhlij1J_UVB8EsLwMitTt9DVEJiAHACLQ     Result： {"errcode":0,"errmsg":"ok","msgid":959769126661160961} ===============================================失败的============================================ [[[接口调用]]] [2019/8/26 13:56:12] [线程：62]     URL：https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=24_pppFPnAEMqvoe9tPpJSHg-iK8fnINfL5bG4lpvtWwb9XFD_elm_aM-vLlerMcGZiwf8oYrYy8I-Gvrft0b3s3lkzWUpdi12kBjs8AVfcf1fJ0glOR_aoJUOISxhlij1J_UVB8EsLwMitTt9DVEJiAHACLQ     Result： {"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest hint: [09724694!]"}