说明：

本帖主要说明商品编码，商品 id，商品规格 id 和商品规格编码

对照表

商品设置（如下图）

查询商品详情：

sku 信息：这里我们看到我们自定义的“规格编码”对应 item_no 字段，
1）sku_id 这个值是有赞生成的规格 id
2）item_id 有赞生成的商品唯一 id

` "skus":[{"sku_unique_code":"48182989436327962","with_hold_quantity":0,"quantity":100,"item_id":481829894,"created":"2019-06-21 14:55:44","price":1,"properties_name_json":"[{\"vid\":7443,\"v\":\"1号\",\"kid\":3,\"k\":\"蓝色\"}]","modified":"2019-06-21 14:55:44","sku_id":36327962,"sold_num":0,"item_no":"sku-001"}]`

商品编码对应的是
1）item_no 商家或开发者自定义商品编码

"item_no":"item-no-001"

该商品订单查询响应结果

"orders":[{"is_cross_border":"null","outer_item_id":"item-no-001","discount_price":"0.01","item_type":0,"num":1,"oid":"1523567349345040051","title":"我是个编码","fenxiao_payment":"0.00","item_message":"","buyer_messages":"","is_present":false,"cross_border_trade_mode":"null","price":"0.01","sub_order_no":"null","biz_item_attribute":"null","fenxiao_price":"0.00","total_fee":"0.01","alias":"2x96m0z4l3kvk","payment":"0.01","is_pre_sale":"null","outer_sku_id":"sku-001","sku_unique_code":"48182989436327962","goods_url":"https://h5.youzan.com/v2/showcase/goods?alias=2x96m0z4l3kvk","customs_code":"null","item_id":481829894,"sku_id":36327962,"sku_properties_name":"[{\"k\":\"蓝色\",\"k_id\":3,\"v\":\"1号\",\"v_id\":7443}]","pic_path":"https://img.yzcdn.cn/upload_files/2019/05/28/FoyaFm_nYNhl1VcmvZy4c-9FJJAf.jpg","pre_sale_type":"null","points_price":"0"}]

商品规格编码对应订单：outer_sku_id 字段

"outer_sku_id":"sku-001"

商品编码对应：outer_item_id 字段

`"outer_item_id":"item-no-001"`