我的URL

/api.mch.weixin.qq.com/v3/marketing/favor/users/oT50V5fqR_kR8v0DlFl3YG0rsl**/coupons/15541803?appid=wx81c0854ad7fbd6**

请求示例

https:api.mch.weixin.qq.com/v3/marketing/favor/users/2323dfsdf342342/coupons/985688?appid=wx233544546545989

然后一直报

{

    "code": "PARAM_ERROR",

    "message": "参数错误，请核对文档要求"

}