亚马逊物流商品条形码要求
在整个配送过程中，亚马逊物流使用条形码来标识和追踪库存。您发送至亚马逊运营中心的每件商品都必须贴有条形码。
有三种条形码用于标识商品：
注意： 自 2018 年 4 月 17 日起，GCID 不可代替 UPC、EAN、JAN 或 ISBN 创建 ASIN。如果您的品牌已获准加入亚马逊品牌注册计划且您的商品没有 UPC、EAN、JAN 或 ISBN，请申请全球贸易项目代码豁免。
制造商条形码
除非您更改条形码设置，否则亚马逊将在配送过程中始终使用制造商条形码追踪您的库存。如果多个卖家的库存具有相同的制造商条形码，亚马逊将使用距离买家最近的库存配送订单。我们这样做是为了加快配送速度。
如果您的商品没有符合要求的条形码，则可以使用亚马逊条形码代替制造商条形码。
有关更多信息，请参阅使用制造商条形码追踪库存。
亚马逊条形码
对于未使用制造商条形码进行追踪的所有商品，您必须粘贴亚马逊条形码。该分类包括：
具有有效期的商品
消费类商品
外用商品，如护肤品、洗发水和化妆品
经过预处理但条形码无法扫描的商品
您可以自行打印亚马逊条形码并将其粘贴在商品上，也可以由亚马逊打印并粘贴条形码（按件收取费用）。有关更多信息，请参阅使用亚马逊条形码追踪库存和亚马逊物流贴标服务。
Transparency 验证码
Transparency 代码是商品级别的验证贴纸，有助于品牌所有者和买家以防假冒。Transparency 代码带有 Transparency 标志 “T”，且不得被任何其他标签覆盖，也不得覆盖任何其他标签。要了解更多信息并查看贴纸示例，请参阅 Transparency 页面。
亚马逊官网原文详情：
FBA product barcode requirements
FBA uses barcodes to identify and track inventory throughout the fulfillment process. Each item you send to an Amazon fulfillment center requires a barcode.
There are three kinds of barcodes for identifying products:
Manufacturer barcodes (eligible barcodes include GCID, UPC, EAN, JAN, or ISBN)
Amazon barcodes (such as FNSKU)
(Brand owner only) Some products may require an additional Transparency authenticity code to help prevent counterfeit
Note: As of April 17, 2018, GCIDs can no longer be used in place of a UPC, EAN, JAN, or ISBN to create ASINs. If your brand has been approved for the Brand Registry program and you don’t have UPCs, EANs, JANs, or ISBNs for your products, apply for GTIN exemption.
Manufacturer barcodes
Amazon will always use the manufacturer barcode to track inventory throughout the fulfillment process, unless you change your barcode setting. If more than one seller has inventory with the same manufacturer barcode, Amazon fulfills orders with inventory that’s closest to the customer. We do this to facilitate faster delivery.
If you do not have an eligible barcode for your product, an Amazon barcode can be used in place of the manufacturer barcode.
For more information, see Using the manufacturer barcode to track inventory.
Amazon barcodes
Amazon barcodes must be applied to all products that are not tracked using manufacturer barcodes. This category is comprised of:
Products with an expiration date
Consumable products
Topical products such as skin creams, shampoos, and cosmetics
Products that are prepped so that the barcode cannot be scanned
You can print Amazon barcodes and apply them to your products yourself, or Amazon can print and apply them for a per-item fee. For more information, see Use an Amazon barcode to track inventory and FBA Label Service.
Transparency authenticity codes
Transparency codes are item-level authentication stickers that help protect brand owners and customers from counterfeit. Transparency codes are accompanied by a Transparency “T” logo and must not be covered by any other label, nor cover any other label. To learn more and see a sample sticker, see the Transparency page.
文章来源：亚马逊官方网站
