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What is ASIN

What is ASIN on Amazon? Is an Amazon ASIN only used on Amazon?  Read On, Everything You Need to Know.

Understanding What is ASIN on Amazon

Amazon has become one of the biggest online marketplaces in recent years. With millions of products listed and sold on the platform, identifying individual items can be a daunting task. That’s where the ASIN comes in.

tl;dr – ASIN is Amazon’s unique identifier for products on their website. As a seller, it will be the most used parts of your business. Everything revolves around an ASIN.

ASIN, or Amazon Standard Identification Number, is a unique identifier that Amazon assigns to each product listed on its website. With the help of ASINs, Amazon can keep track of its vast catalog with ease, while providing a seamless shopping experience for customers.

To fully understand how ASINs work on Amazon, it’s essential to dive deeper into what they are and why they matter for sellers and buyers alike.

FUN FACT: Amazon ASINS have 10 characters but start with a “B”. Based on that, Amazon can have approximate 34,162,713,446,400 different products!

Key Takeaways:

  • The Amazon Standard Identification Number (ASIN) is a unique identifier for each product listed on Amazon.
  • ASIN helps Amazon manage its vast catalog, making it easier for customers to find what they’re looking for.
  • ASIN is crucial for sellers, as it helps them list and identify their products on Amazon.
  • ASIN is not the only identifier used on Amazon, but it remains a vital tool for product identification and sales.
  • Understanding ASIN is key for anyone looking to navigate Amazon’s product catalog efficiently, whether they’re a seller or a customer.

What is Amazon ASIN Number?

Amazon Standard Identification Number (ASIN) is a unique identification number assigned to every product listed on Amazon. It’s a 10-character alphanumeric code comprising of letters and numbers that helps Amazon identify and track products throughout its vast online shopping platform.

ASIN serves as an essential tool for product identification, tracking, and cataloging on Amazon, allowing sellers to manage their product listings and customers to search and purchase products with ease. Every product on Amazon has a unique ASIN, ensuring that customers can easily locate the exact item they want to purchase.

ASIN is also used to link product information such as titles, descriptions, images, and prices from Amazon’s product catalog to product detail pages, ensuring accurate product information and pricing for Amazon customers.

In summary, ASIN is a crucial identifier for products on Amazon, enabling smoother shopping experiences for customers and more efficient product management for sellers.

How Do You Create a New Asin?

Creating a new ASIN is an important process for sellers wanting to list their products on Amazon. The first step in creating a new ASIN is to ensure that the product is not already listed on the Amazon Marketplace. If it is, sellers should use the existing ASIN instead of creating a new one.

If the product is not already listed, sellers can create a new ASIN using Amazon Seller Central. When creating a new ASIN, sellers must provide a unique product identifier, typically a UPC or ISBN, along with additional product details such as brand, manufacturer, and product title. Amazon will then review the new ASIN submission to ensure it complies with their asin creation policy then, Amazon will assign a new ASIN for a product.

Amazon limits the number of new ASINs that can be created by a single seller per day to prevent spamming the marketplace. The number of new listings is determined by the seller’s account age, order defect rate, and sales history. As a result, creating new ASINs requires careful planning and adherence to Amazon’s policies to avoid account suspensions and other penalties.

Once the product’s ASIN is created, you’ll find the ASIN in Amazon Seller Central under your Manage Inventory. Manage Inventory is a location of all your listings on Amazon. 

Why ASIN is Important for Sellers?

ASINs play a pivotal role in product identification, tracking, and listing. The use of ASINs makes it easier for sellers to manage their inventory and offer their products to the largest potential customer base.

For sellers, ASIN is an essential tool for using Amazon’s selling platform, Amazon Seller Central. It aids in product identification on the product detail page, helping sellers to create effective listings that provide potential buyers with accurate and comprehensive product information.

ASIN also ensures that product information is standardized across the platform, making compare-and-contrast shopping easier for buyers. A good understanding of ASIN lookup and use of ASIN for product listing assists sellers in achieving store or brand recognition, a must-have for a successful profile on Amazon. Amazon’s goal is that there will only be one ASIN per product, though you will find Amazon won’t restrict products having different ASINs though they are technically the same product. 

Overall, ASIN, as a unique identifier, makes it easier for sellers to navigate Amazon’s vast marketplace, while providing a consistent customer experience. As such, it is essential for sellers to ensure mastery of the ASIN policy and practices to reach the heights of success on Amazon.

How to do an ASIN lookup?

Finding the ASIN of a particular product on Amazon can be done through a few different methods, including:

  • Reverse ASIN Lookup: By using a reverse ASIN lookup tool, you can input the product’s name or URL to find the corresponding ASIN. Many third-party tools offer this feature, but Amazon’s advertising console also provides it.
  • Product Detail Page: On a product’s detail page, you can look for the ASIN in the product information section, usually located beneath the product title and price.
  • Amazon Seller Central:  The Amazon “Add a Product” tool in the Catalog Menu will allow you search and directly create an ASIN. 
  • Search first: To be successful on Amazon, it is always recommend you search first to find ASINs that may match your products on Amazon  already. 

Using any of these methods can help you find the ASIN quickly and efficiently so you can use it for various Amazon-related activities.

What are the Different Types of ASIN?

ASINs are unique identifiers that represent products listed on Amazon. There are three different types of ASINs: existing ASINs, new product ASINs, and parent ASINs.

Existing ASINs

Existing ASINs are used for established products that have already been listed on Amazon. These ASINs are typically assigned by Amazon and are used to identify specific product listings. Sellers can use an existing ASIN to list their products if they are selling the same product or a product that is compatible with the existing listing. Using an existing ASIN can save sellers time and increase their visibility on Amazon.

New Amazon Product ASINs

New product ASINs are created for products that are not yet listed on Amazon. Amazon has strict policies regarding the creation of new ASINs, with the goal of maintaining accuracy and consistency within their product catalog. To create a new product ASIN, the product must meet certain criteria, including having a unique identifier such as a UPC or EAN, and providing accurate and complete product information.

Parent ASINs

Parent ASINs are used for products that have variations, such as size or color options. The parent ASIN represents the main product, while the child ASINs represent each variation of the product. Parent ASINs help customers easily navigate through the product options and provide sellers with a way to manage their product variations efficiently.

Understanding the different types of ASINs is crucial for sellers to efficiently list their products on Amazon and for customers to find and purchase products that meet their needs.

ASIN in Product Listing and Catalog

ASIN, as a unique identifier, plays a crucial role in Amazon’s product listing and catalog. It helps sellers ensure that buyers can easily search, identify and purchase the product sold on Amazon.

The Product Page

When a buyer searches for a specific product, ASIN helps Amazon to display those products that match the search criteria. Buyers can easily find the product they want with the unique ASIN.

On the product detail page, ASIN appears under the “Product information” section of the description box. The product page also shows other significant product identifiers, such as the European Article Number (EAN) and Universal Product Codes (UPC).

The Product Catalog

The Amazon product catalog is a massive listing of products sold on Amazon. It is constantly growing and evolving. Every product on Amazon has a unique ASIN. Amazon uses this unique identifier to manage all product listings.

When creating a new product listing, sellers are required to use a unique ASIN, to ensure that their product is listed correctly and to avoid any confusion with other products on the marketplace. Additionally, this helps Amazon manage and classify products in the right categories, based on its individual ASIN.

Product Identifiers

In addition to ASIN, EANs, and UPCs are other product identifiers that Amazon uses to manage its listings. ASIN is unique to Amazon, while UPC and EAN codes are globally recognized barcodes.

Using ASIN for Amazon Sellers

As an Amazon seller, understanding how to effectively use ASINs on Amazon is crucial to your success. One of the first things you’ll need to do is set up your seller central account to begin selling on Amazon. Once you’ve done that, you can start using ASINs to help you:

  • Identify unique products
  • List new products on Amazon
  • Monitor product listings
  • Track sales performance

When you’re creating a new product listing, you’ll need to link your ASIN to the corresponding UPC code to ensure that your product is accurately listed on Amazon. You can then use the ASIN to check if a specific product already exists on Amazon or not. This is essential when adding variations of products or creating new listings.

It’s also important to ensure that you’re using valid ASINs. You can check if an ASIN is legitimate by using Amazon’s built-in tool for ASIN verification. This can be done through your seller central account by uploading a file with the list of ASINs you want to check. If an ASIN is invalid, it’s best to contact Amazon to resolve the issue.

Ways to effectively use unique Amazon ASINs for selling on Amazon

Use of ASINBenefits
Linking ASIN to UPC codeEnsures accurate product listing
Checking if a product listing exists on AmazonHelps avoid creating duplicate product listings
Verifying validity of ASINsEnsures the accuracy and legitimacy of product listings

By using ASINs effectively, you can improve your overall sales performance on Amazon. It’s important to keep up-to-date on new developments in Amazon’s policies regarding ASIN creation and usage to maintain compliance and ensure success as an Amazon seller.

Benefits of ASIN for Customers

ASINs play a key role in providing an efficient shopping experience for customers on Amazon. Here are some of the benefits:

  • Facilitates Product Search: ASINs are unique identifiers for products sold on Amazon, which make it easier for customers to find the exact product they are looking for. Surprisingly customers will search by ASIN.
  • Ensures Accurate Product Information: ASINs are linked to product listings that provide accurate and detailed information about the product, including images, descriptions, and reviews.
  • Enables Easy Purchases: ASINs are connected to the Amazon Buy Box, which allows customers to quickly add products to their cart and check out with ease. This feature is only available for products listed with a unique ASIN.
  • Amazon Product Listing: ASINs help to manage the product detail pages of items sold on Amazon. The catalog management tool also allows the addition of third-party new offers or updates to existing items.

For instance, imagine a customer is looking to buy a particular book on Amazon. A quick search using the book’s ASIN will display the exact product listing, including the author, publisher, book dimensions, and any other relevant product details. This helps customers to make informed purchase decisions without confusion, ensuring increased customer satisfaction.

ASIN and Amazon’s Product Catalog

Amazon’s product catalog is a vast collection of products from different sellers all over the world. As of 2021, the total number of products available on Amazon is over 12 million. This number is growing every day, with thousands of new listings added daily.

To manage this massive catalog, Amazon uses a unique identifier known as ASIN. Every product listed on Amazon is assigned a unique ASIN that distinguishes it from other products. Amazon also limits the number of new ASINs that can be created. This helps Amazon to maintain quality and prevent low-quality or duplicate listings from crowding the catalog.

Number of New Listings

Amazon allows sellers to list new products on Amazon subject to certain conditions. One condition is that the product being listed should have a unique ASIN. Amazon sets a limit on the number of new ASINs that can be created so that sellers cannot flood the platform with low-quality products. The limit is subject to change, and sellers can check their seller central account for updates.

Create a New Amazon ASIN

If a seller wants to list a product that does not have an existing ASIN, they must create a new ASIN for that product. To create a new ASIN, the seller must provide relevant product information, such as product type, brand name, and product features. Amazon uses this information to verify the product’s authenticity and accuracy before publishing the new ASIN in the catalog.

Amazon ASINs

Amazon assigns a unique ASIN to all products sold on the platform. This ASIN is the unique identifier for that product and links to the product detail page. Amazon recommends that sellers use the ASIN to list their products since it ensures that the product information on the Amazon product detail page is accurate.

Amazon Product Catalog InformationStatistics
Total Number of ProductsOver 12 Million
New listings added dailyThousands
ASIN is the unique identifier for products in the catalogYes
New ASINs created by sellers are subject to policy restrictionsYes

Limit the Number of New ASINs

Amazon sets a limit on the number of new ASINs created in various categories to maintain order and ensure quality. This policy ensures that the product catalog does not get too crowded with low-quality products, making it easier for customers to find high-quality products.

Sellers who want to list new products should check their seller central account for information about the current policy on ASIN creation. Violating Amazon’s ASIN creation policy can lead to account suspension or cancellation.

Understanding how ASIN works in Amazon’s product catalog can be an advantage for sellers and customers. ASINs help sellers to list their products on Amazon, making them discoverable for potential buyers. For customers, ASINs ensure accurate product information and make purchasing easy.

How ASIN Relates to Other Identifiers

While ASINs serve as a unique identifier for products listed on Amazon, they are not the only product identifier used by Amazon sellers and customers. Other common identifiers include ISBN numbers and Amazon brand registry.

ISBN numbers are international standard book numbers used to identify books, and they are often listed alongside ASINs on Amazon product pages. For books, a single product can have both an ISBN and an ASIN. Amazon brand registry, on the other hand, is a program designed to help sellers protect and manage their brand on Amazon. A registered brand can have its own unique identifier, which may or may not be the same as the ASIN.

However, it is important to note that ASINs remain the primary identifier used by Amazon for product listing and identification. ASINs are used by Amazon’s product catalog and search algorithms to match products with customer searches and display product details, pricing, and availability. Therefore, understanding ASINs is crucial for sellers and customers alike navigating Amazon’s vast product catalog.


Understanding what an ASIN is can be a game-changer for both sellers and customers on Amazon. As an essential Amazon identifier, it helps sellers to list their products effectively and customers to find them easily.

Through the creation of new ASINs and the use of reverse ASIN lookup, sellers can expand their product offerings on Amazon and optimize their presence on the platform. ASINs also enable easy purchase through the Amazon Buy Box and provide accurate and reliable product information to customers.

ASIN is a critical component of Amazon’s product catalog, contributing to its vast size and diversity. However, Amazon also limits the number of new ASINs created to ensure the product catalog’s quality and relevance.

ASINs work in conjunction with other product identifiers, such as ISBN numbers and Amazon brand registry, to create a robust ecosystem of product information on Amazon.

In conclusion, understanding what an ASIN is and how it works is crucial for anyone selling or buying products on Amazon. By using ASINs effectively, both sellers and customers can enhance their Amazon experience and improve their chances of success on the platform.


What is ASIN on Amazon?

ASIN stands for Amazon Standard Identification Number. It is a unique identifier assigned by Amazon to every product listed on its platform, serving as a universal product identification code.

How is ASIN created?

Amazon assigns an ASIN to a product when it is listed for sale on the platform. Sellers can create a new ASIN for a unique product that does not already exist in the Amazon catalog.

Why is ASIN important for sellers to be successful on Amazon?

ASIN is important for sellers as it serves as a unique identifier for their products. It allows sellers to list and manage their products efficiently on Seller Central and provides customers with accurate product information on the product detail page.

How can I find an ASIN?

There are several ways to find an ASIN. You can search for it on the product page, use reverse ASIN lookup tools, or understand the acronym ASIN stands for: Amazon Standard Identification Number.

What are the different types of ASIN?

There are different types of ASINs. Existing ASINs are assigned to established products in the Amazon catalog. New product ASINs are created for unique products. Parent ASINs are used for variations of a product.

How is ASIN used in product listing and catalog?

ASINs are used to identify products in product listings and the Amazon product catalog. They help with product identification, sales tracking, and categorization in the vast catalog.

How can Amazon sellers effectively use an existing ASIN?

Amazon sellers can use ASINs to link products to UPC codes, check the validity of an ASIN, and ensure accurate product listings. They can utilize ASINs within their Seller Central account to manage their inventory and optimize their product listings.

What are the benefits of ASIN for customers?

ASINs benefit customers by facilitating product search, ensuring accurate product information, and enabling easy purchases. Customers can use ASINs to quickly find the product they are looking for and make informed buying decisions.

How does ASIN contribute to Amazon’s product catalog?

ASINs contribute to the size and diversity of Amazon’s product catalog. Amazon has a policy to limit the number of new ASINs created to ensure quality and organization within the catalog, which contains a vast number of products.

How does ASIN relate to other identifiers?

ASINs are unique to Amazon and serve as a primary identifier for products on the platform. They are not directly related to other identifiers like ISBN numbers or Amazon brand registry.

Is there software for Amazon sellers or Amazon product research tools? 

Yes, there are lots of great tools out there such as Fusion for creating new listings. Product research tools such as Jungle Scout are great tools as well. 

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