http请求方式：POST
https://api.weixin.qq.com/product/coupon/create?access_token=xxxxxxxxx

{
    "type": 1,
    "coupon_info": 
    {
        "name" : "双十一特惠满100-50",  //长度 <= 10
        "discount_info" : 
        {
            "discount_condition" : 
            {
                "product_cnt" : 10,//商品折扣券填
                "product_ids" : //商品券填
                [
                    1673110742,
                    1673110743
                ],
                "product_price" : 100//满减券填
            },
            "discount_fee" : 50,//满减金额
            "discount_num" : 10//折扣券填  折扣*1000
        },
        "ext_info" : 
        {
            "jump_product_id" : 1673110742,//商品券可以填，领取后跳转
            "notes" : "备注",
            "valid_time" : 1673110742,  // valid_type=0时与valid_info.start_time一致, valid_type=1时商家自己填一个绝对开始时间
            "invalid_time" : 1673110742 // valid_type=0时与valid_info.end_time一致, valid_type=1时商家自己填一个绝对结束时间
        },
        "promote_info" : 
        {
            "customize_channel" : "//自定义推广渠道,具体内容",
            "promote_type" : 1     //推广类型,1:店铺内推广,2:自定义推广渠道
        },
        "receive_info" : // 允许用户领取优惠券的设置
        {
            "end_time" : 1673110742,
            "limit_num_one_person" : 1,
            "start_time" : 1673110742,
            "total_num" : 100
        },
        "valid_info" : 
        {
            "end_time" : 1673110742,        //绝对生效开始时间, valid_type=0时必填
            "start_time" : 1673110742,      //绝对生效结束时间, valid_type=0时必填
            "valid_day_num" : 1,            //相对生效时间时长, 以用户领到券的时候开始算, valid_type=1时必填
            "valid_type" : 0
        }
    }
}

{
    "errcode": 0,
    "errmsg": "ok",
    "data": {
        "coupon_id": 111
    }
}