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Locating Product IdentifiersWhat are GTINs? Product pages in the Amazon.com catalog provide buyers with an ASIN (Amazon Standard Identification Number) in the product details section and in the URL of the page itself. ASINs are used to reference catalog data, track inventory for products, and index catalog pages for search and browse. However, the basis for accurate product page creation and product matching is product identifiers outside of the Amazon.com system. For most product categories, sellers are required to use an industry-standard product identifier when creating new pages in the Amazon.com catalog. These product identifiers are part of a system called GTINs, or Global Trade Item Numbers. The most common GTINs used to create Amazon.com catalog pages are UPCs, ISBNs and EANs. Universal Product Codes (UPCs), International Standard Book Numbers (ISBNs), and European Article Numbers (EANs) are distinctive codes used to identify a particular item. Amazon uses these codes and numbers to identify the exact item you wish to sell. What are GTINs?Global Trade Item Numbers (GTINs) are unique and universal identifiers used internationally to find product information across databases. These codes are generally found above or below the bar code on the product packaging (or cover) of your item, and may vary in length.
While these coding systems were developed in different industries and regions over time, they are currently standardized under the GS1 international system. ISBNs used by the book industry have been expanded to 13 digits to align them with the EAN system. UPCs, which are used most commonly in the United States, are often considered to have 13 digits, with an extra leading zero (0). How Products Are DefinedWhichever coding system is used, the general rule is that each unique product manufactured and sold to consumers must have a unique trade item number. However, it's important for Amazon sellers to understand the distinction made in retail trade between a product as a single item and a product as a "sellable unit". Packs or Sets: For packages that include multiple quantities of the smallest sellable unit of a product, manufacturers are required to provide a distinct GTIN. In other words, a single pair of gloves will have one UPC and a 3-pack of the same gloves will have a different UPC. When creating pages for packs or sets, sellers should be careful to use the correct GTIN and enter the quantity of items contained in the package. Bundles: Bundles are unique sellable units that include multiple different items that would each require a separate GTIN when sold separately. All Bundles must follow the bundle guidelines and are subject to review for accuracy and relevance, and may be removed without notice. Case Packs: Manufacturers use a GTIN-14 when shipping items to retailers to designate the smallest sellable unit and the number of those units contained in a single case or carton. The GTIN-14 identifies a "case pack" that can be sold as a unit. When selling an entire case, sellers should use the GTIN-14, not the UPC for any single item contained in the case. How to Obtain a Product CodeIf you do not have the GTIN (UPC, IBSN, or EAN) for your product, please request it from the manufacturer. If you manufacture the product yourself, please visit the GS1 standards website for more information: Sellers in the United States may instead go directly to one of these websites:
How to Identify UPCs, ISBNs, EANs, and GTIN-14sYou will find the UPC, ISBN or EAN on the packaging and/or back cover of your item. The GTIN-14 appears on the shipping container. UPC UPCs are found below the bar code: ISBN ISBNs are located above the bar code: EAN EANs are found below the bar code: GTIN-14 GTIN-14s are found below the bar code: How to Find ASINsAmazon Standard Identification Numbers (ASINs) are unique blocks of 10 letters and/or numbers that identify items. You can find the ASIN on the item's product information page at Amazon.com and in the URL for the page. The quickest way to find your product's ASIN is to look in your browser's address bar. Copy the number that appears after the item name and "dp" in the address:
In the example above, the ASIN is also an ISBN-10. Here's a sample URL for the detail page of a wireless electronics product with an Amazon "B00" ASIN sequence. http://www/Kindle-Amazons-Wireless-Reading-Generation/dp/B00154JDAI/
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