3. Listing ID
There are listings on platforms such as EBAY and WISH. Many people directly call a listing a product. In fact, it is a product page except for multi-attribute variant products. A listing is automatically generated by Amazon with corresponding Listing ID and ASIN.
In the current Amazon backend product list, you can click the Listing ID and PRODUCT NAME hyperlinks to enter the product page directly. In the frontend, it is impossible to find the corresponding products by search Listing ID. If you search PRODUCT NAME, you may see a series of similar products. In other words, PRODUCT NAME, as the name implies, is only the product name. And since Amazon allows repeated product names, PRODUCT NAME is not the only identification for products.
4. UPC(Universal Product Code)
When uploading products on Amazon, most categories require sellers to use a specific GTIN (Global Trade Item Code, with types such as UPC, EAN, JAN, or ISBN), and the most commonly used code is UPC.
The UPC is a commodity barcode developed by the United States Uniform Code Committee. This code is mainly used in the United States and Canada. UPC was the first barcode to be used on a large scale. Because of its wide range of applications, it is also called universal barcode and is popular in international trade.
UPCs are also available in standard and shortened versions. The standard version consists of 12 digits and the shortened version consists of 8 digits.
The coding structure of the standard version of UPC12 is: system code (1 digit) + manufacturer code (5 digits) + product code (5 digits) + verification code (1 digit).
Different product categories or different types of products in the same category have different UPC requirements. Certain categories may allow sellers to apply for UPC exemptions.
5. EAN(European Article Number)
The EAN is a product identification symbol established on the basis of the UPC. EAN is a commercial bar code formulated by the International Article Numbering Association (GS1), and is universally used. The prefix range allocated to the Chinese Article Numbering Center is 690 to 696. Then the China Article Numbering Center will uniformly assign the enterprise code, and the product code will be compiled by the manufacturer according to the regulations. The standard EAN13 coding structure is: country code (2/3 digits) + manufacturer code (5/4 digits) + product code (5 digits) + verification code (1 digit).
Because the EAN is generated on the basis of the UPC, the photoelectric reader of the EAN system can read the bar code of the UPC system, but the photoelectric reader of the UPC system cannot read the EAN.
If Amazon sellers register their brands on Amazon, Amazon will automatically assign a unique product code called the Global Catalog Identifier Code (GCID) to the product.
When uploading products on Amazon, the seller must provide the UPC/EAN code, but if the seller’s brand is successfully registered and obtains the GCID, then there is no need to purchase codes of EAN or UPC.