1、问题出现时机点：收到微信小店通知已结算

通知的内容： {"ToUserName":"gh_570e25fa6f1c","FromUserName":"o-tGv6-LVXaXQhvl6DzfuVeHiYqI","CreateTime":1733732050,"MsgType":"event","Event":"channels_ec_order_settle","order_info":{"order_id":3724351708309882112,"settle_time":1733732025}}

2、故障接口：

请求微信小店订单详情页接口：https://api.weixin.qq.com/channels/ec/order/get

返回值，预期settle_info对象中会有commission_fee参数，实际没有返回commission_fee

3、参考文档，已结算应该要有返回技术服务费

https://developers.weixin.qq.com/doc/store/API/order/get.html#a_SettleInfo