{"id":13795,"date":"2024-12-24T10:19:58","date_gmt":"2024-12-24T10:19:58","guid":{"rendered":"http:\/\/www.repricerexpress.com\/?p=13795"},"modified":"2025-09-30T11:01:55","modified_gmt":"2025-09-30T10:01:55","slug":"amazon-asin","status":"publish","type":"post","link":"https:\/\/www.repricerexpress.com\/amazon-asin\/","title":{"rendered":"Amazon ASIN, EAN, ISBN and UPC: What They Are and How to Use Them"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13795\" class=\"elementor elementor-13795\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-48af564c e-flex e-con-boxed e-con e-parent\" data-id=\"48af564c\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-65acbcb7 elementor-widget elementor-widget-text-editor\" data-id=\"65acbcb7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Guest post by Gabe from Synccentric<\/em><\/p><p><b>Did you know that every single product in the world also has its own identification numbers? As an online retailer, you may be faced with figuring out the differences between the identification number options available. With so many numbers to choose from that are associated with the same product it can be confusing to know which is the correct product code to use \u2013 Amazon ASIN number, EAN, ISBN or UPC?<\/b><\/p><p><span style=\"font-weight: 400;\">Understanding when to use each number format and how to map each code back to the product so you can track your inventory and run the correct reports can be complicated. But it doesn\u2019t need to be.<\/span><\/p><p><span style=\"font-weight: 400;\">If you\u2019re a third-party seller who has been scratching your head over questions like what does ASIN mean on Amazon and how does it compare to EAN, ISBN, and UPC, keep reading for the information you need!<\/span><\/p><h2>1. Amazon ASIN Number<\/h2><p><a href=\"http:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin.png\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-13810 size-full\" src=\"http:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin.png\" alt=\"Amazon ASIN\" width=\"889\" height=\"431\" srcset=\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin.png 889w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin-300x145.png 300w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin-768x372.png 768w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin-200x97.png 200w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin-400x194.png 400w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin-600x291.png 600w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-asin-800x388.png 800w\" sizes=\"(max-width: 889px) 100vw, 889px\" \/><\/a><\/p><p><span style=\"font-weight: 400;\">So, what is an ASIN number on Amazon? If you are planning on becoming an <\/span><a href=\"http:\/\/www.repricerexpress.com\/how-to-sell-on-amazon\/\"><span style=\"font-weight: 400;\">Amazon third-party seller<\/span><\/a><span style=\"font-weight: 400;\"> or you already are, then <\/span><a href=\"https:\/\/www.amazon.co.uk\/gp\/help\/customer\/display.html?nodeId=201889580\"><span style=\"font-weight: 400;\">ASIN<\/span><\/a><span style=\"font-weight: 400;\"> is an important abbreviation as it is the Amazon Standard Identification Number. But what does ASIN mean on Amazon?\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Because Amazon operates at a vast scale, it needs all its items to have their own number. It\u2019s how their warehouses recognize which products to ship.<\/span><\/p><p><span style=\"font-weight: 400;\">ASINs are only universal when it comes to books. In this instance, Amazon uses the ISBN and ASIN interchangeably. But for other products, there could be a separate Amazon ASIN label depending on your location. For instance, the same item in the United States may have a different ASIN than an identical item in the UK.<\/span><\/p><p><span style=\"font-weight: 400;\">Every third-party seller is responsible for marking their inventory with the correct Amazon ASIN label so that it will end up in the correct location. To find an ASIN, simply search on Amazon. The ASIN will be in the URL of an item and always consists of ten digits. If you are having trouble locating it, the item description will also have an ASIN listed in the details. If you have a unique item, you can even <\/span><a href=\"https:\/\/sellercentral.amazon.com\/gp\/help\/external\/201844590\"><span style=\"font-weight: 400;\">create a new ASIN<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p><p><span style=\"font-weight: 400;\">We know that adding ASINs may feel tedious, especially for products that already have UPCs. However, without the correct ASIN, your item may not make it out of the warehouse and into the hands of your customers. And good news: Once you have a solid understanding of the ASIN meaning on Amazon and what is an ASIN number on Amazon, it will become easier to find things in the entire Amazon catalog.<\/span><\/p><p><strong>Related:<\/strong>\u00a0<a href=\"http:\/\/www.repricerexpress.com\/action-to-take-when-you-get-an-asin-change-notification\/\">Action to Take When You Get an ASIN Change Notification<\/a><\/p><h2>2. EAN<\/h2><p><img decoding=\"async\" class=\"alignnone size-full wp-image-13799\" src=\"http:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/ean.png\" alt=\"EAN\" width=\"523\" height=\"290\" srcset=\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/ean.png 523w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/ean-300x166.png 300w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/ean-200x111.png 200w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/ean-400x222.png 400w\" sizes=\"(max-width: 523px) 100vw, 523px\" \/><\/p><p><span style=\"font-weight: 400;\">Just like the Amazon ASIN, European Article Numbers (<\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/International_Article_Number\"><span style=\"font-weight: 400;\">EANs<\/span><\/a><span style=\"font-weight: 400;\">) are simply another way of distinguishing products. EANs function similarly to UPCs (we\u2019ll get to them in a moment) but are primarily used in Europe rather than the United States. Overseen by GS1 (which is the global standards organization for barcoding), EANs follow a slightly different format tailored to European standards.<\/span><\/p><p><span style=\"font-weight: 400;\">The only major difference between UPC and EAN is that EAN has 13 digits (as opposed to the UPC\u2019s 12), and the information in the code is in a different order than a UPC. An item\u2019s country of manufacture will determine which code it receives. UPC is used in the United States and Canada, where EAN is used everywhere else globally.<\/span><\/p><h2>3. ISBN<\/h2><p><img decoding=\"async\" class=\"alignnone size-full wp-image-13798\" src=\"http:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/isbn.png\" alt=\"ISBN\" width=\"399\" height=\"345\" srcset=\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/isbn.png 399w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/isbn-300x259.png 300w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/isbn-200x173.png 200w\" sizes=\"(max-width: 399px) 100vw, 399px\" \/><\/p><p><span style=\"font-weight: 400;\">Just as products have a UPC code assigned to them, every book has an <\/span><a href=\"https:\/\/blog.reedsy.com\/guide\/isbn-number\/\"><span style=\"font-weight: 400;\">ISBN<\/span><\/a><span style=\"font-weight: 400;\"> or International Standard Book Number. Every book, magazine or ebook needs an ISBN unless it is <\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/Self-publishing\"><span style=\"font-weight: 400;\">self-published<\/span><\/a><span style=\"font-weight: 400;\">. (And it\u2019s possible to get an ISBN for self-published books as well!)<\/span><\/p><p><span style=\"font-weight: 400;\">Every edition of a book will have a separate ISBN, even if it\u2019s the same title. This delineation helps publishers and authors understand exactly how many books have been purchased and which areas of the world are purchasing the material. Each country has an agency whose job it is to register new ISBNs, while sticking to international standards.<\/span><\/p><h2>4. UPC<\/h2><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13797\" src=\"http:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/upc.png\" alt=\"UPC\" width=\"450\" height=\"270\" srcset=\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/upc.png 450w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/upc-300x180.png 300w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/upc-200x120.png 200w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/upc-400x240.png 400w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/p><p><strong>Image credit:<\/strong> GS1-US<\/p><p><span style=\"font-weight: 400;\">UPC is short for <\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/Universal_Product_Code\"><span style=\"font-weight: 400;\">Universal Product Code<\/span><\/a><span style=\"font-weight: 400;\">. As the name implies, this is the number that is universal. No matter which retailer or marketplace you are using, this number is recognized and associated with your product. This is the number that is used to make barcodes and will be used by the manufacturer to track global sales.<\/span><\/p><p><span style=\"font-weight: 400;\">Typically a UPC is 12 digits long \u2014 but did you know that those numbers reflect the size and weight of an item? UPCs became popular along with the rise of automated billing. Since retailers were no longer typing in the individual price of an item, they needed a way for checking out to go faster and for a computer to recognize what the item was.<\/span><\/p><p><span style=\"font-weight: 400;\">The technology for UPCs hasn\u2019t changed much since they were first invented. If you\u2019ve ever done a self-checkout at a grocery or retail chain, you are scanning the UPC code, and that code tells the computer how much that item weighs so the \u201cbagging area\u201d will be able to recognize it.<\/span><\/p><p><span style=\"font-weight: 400;\">If you have a brand new product with no UPC assigned to it, you will need to <\/span><a href=\"https:\/\/www.gs1us.org\/upcs-barcodes-prefixes\"><span style=\"font-weight: 400;\">register your item with GS1<\/span><\/a><span style=\"font-weight: 400;\">, the company that oversees all UPC. Once your product has a code assigned to it, you can order as many barcodes as you need in order to label your items ready for sale.<\/span><\/p><h2>How to Use Them<\/h2><p><span style=\"font-weight: 400;\">Tracking Amazon ASINs, UPCs, ISBNs and EANs may seem overwhelming \u2014 but it doesn\u2019t have to be. There are many tools on the market that can help you quickly keep track of all your items and their different identification numbers.<\/span><\/p><p><span style=\"font-weight: 400;\">For instance, converters make light work of matching an item\u2019s ASIN to its UPC . These tools can help you run reports you need as a retailer. No need to individually search for each Amazon ASIN labels or worry about errors \u2014 these tools ensure all your product data is accurately tracked and accessible.<\/span><\/p><h2>Conclusion<\/h2><p><span style=\"font-weight: 400;\">Understanding how each identification number works is a cornerstone of success if you\u2019re an online seller. If you sell on Amazon you\u2019ll be ordering products from manufacturers with UPCs or ISBNs and sell them on Amazon using ASINs. If you\u2019re also selling on other platforms, you may rely more on UPCs or EANs.<\/span><\/p><p><span style=\"font-weight: 400;\">It can be confusing initially, but rest assured that working with these identification numbers will soon become second nature. Like so much in life, it\u2019s just a case of practice.<\/span><\/p><p><span style=\"font-weight: 400;\">Looking for a way to streamline your selling process? Try RepricerExpress for free and see how easy it is to manage your pricing strategy, automate tasks, and stay competitive.\u00a0<\/span><\/p><p><a href=\"https:\/\/dashboard.repricer.com\/register\/do\/repricer?utm_source=rex-blog&amp;utm_medium=refer[%E2%80%A6]ign=rex-to-repricer-registration&amp;utm_activity=take-action\" data-wplink-edit=\"true\"><span style=\"font-weight: 400;\">Sign up for a 14-day trial today<\/span><\/a><\/p><p style=\"text-align: center;\"><a href=\"https:\/\/dashboard.repricer.com\/register\/do\/repricer?utm_source=rex-blog&amp;utm_medium=referral&amp;utm_campaign=rex-to-repricer-registration&amp;utm_activity=take-action\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-47603 size-full\" src=\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2025\/09\/rex_CTA.png\" alt=\"\" width=\"719\" height=\"309\" srcset=\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2025\/09\/rex_CTA.png 719w, https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2025\/09\/rex_CTA-300x129.png 300w\" sizes=\"(max-width: 719px) 100vw, 719px\" \/><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Guest post by Gabe from Synccentric Did you know that every single product in the world also has its own identification numbers? As an online retailer, you may be faced with figuring out the differences between the identification number options available. With so many numbers to choose from that are associated with the same product [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":13796,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-13795","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-amazon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Amazon ASIN, EAN, ISBN and UPC Explained<\/title>\n<meta name=\"description\" content=\"Stumped by Amazon ASIN, EAN, ISBN, and UPC codes? 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This simple guide breaks down what they mean, when to use them, and how they can make selling easier.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.repricerexpress.com\/amazon-asin\/\" \/>\n<meta property=\"og:site_name\" content=\"RepricerExpress\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/repricerexpress\" \/>\n<meta property=\"article:published_time\" content=\"2024-12-24T10:19:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-30T10:01:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-upc.png\" \/>\n\t<meta property=\"og:image:width\" content=\"880\" \/>\n\t<meta property=\"og:image:height\" content=\"587\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Seamus Breslin\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Seamus Breslin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/\"},\"author\":{\"name\":\"Seamus Breslin\",\"@id\":\"https:\/\/www.repricerexpress.com\/#\/schema\/person\/3a136b67199cecf1cc48ce34d50ef4bc\"},\"headline\":\"Amazon ASIN, EAN, ISBN and UPC: What They Are and How to Use Them\",\"datePublished\":\"2024-12-24T10:19:58+00:00\",\"dateModified\":\"2025-09-30T10:01:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/\"},\"wordCount\":1142,\"publisher\":{\"@id\":\"https:\/\/www.repricerexpress.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-upc.png\",\"articleSection\":[\"Amazon\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/\",\"url\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/\",\"name\":\"Amazon ASIN, EAN, ISBN and UPC Explained\",\"isPartOf\":{\"@id\":\"https:\/\/www.repricerexpress.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.repricerexpress.com\/amazon-asin\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.repricerexpress.com\/wp-content\/uploads\/2020\/03\/amazon-upc.png\",\"datePublished\":\"2024-12-24T10:19:58+00:00\",\"dateModified\":\"2025-09-30T10:01:55+00:00\",\"description\":\"Stumped by Amazon ASIN, EAN, ISBN, and UPC codes? 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