ASIN Amazon: Everything you need to know about it.

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Amazon is the world’s huge online marketplace with millions of products being listed and purchased every day. Have you ever imagined how the product catalogue is managed? How do you always get the right and desired products in search results? 

Undoubtedly, you haven’t thought so far, well to organize this ever-growing catalogue Amazon uses ASIN numbers. These numbers help buyers to find products that they want to buy.

If a seller doesn’t use ASINs in the right manner then he can violate Amazon’s selling terms. Hence, for sellers, creating an Amazon ASIN is necessary to list products.

If you don’t know what an ASIN number is and how do sellers use it? Then don’t worry, we are here for you. 

Without further ado, let’s start. 

What is ASIN?

ASIN stands for Amazon Standard Identification number which is essential for easy managing of the product’s catalogue. It is a 10 digit alphanumeric unique identifier allocated by and its various partners to identify all products within the organization. 

ASIN is allocated to maintain the uniqueness of the product. On the other hand, it enables consumers and sellers to easily find the correct products without spending much time. If you are wondering if two items can have the same ASIN, then the answer is NO.

However, ASINs can be different in different countries. That means different Amazon sites may use different ASINs for the same product.

ASINs Relationships

ASINs are organized in a hierarchy which is known as a parent-child variation in the retail domain. This is to give your catalogue a proper designated arrangement and help in keeping inventory coordinated.

Parent ASIN

A parent ASIN is only observable in search results within the Manage Inventory page on Seller Central. This implies; that it has no public product details or even a product page.

The sole purpose is to collect all the buyable child ASINs and establish variation relationships between the child products.

This helps customers to compare and choose products based on different qualities such as size, colour, from the available choices on a single product detail page.

In this way, customers don’t need to browse separate pages for each colour and size of the same/similar product.

Child ASIN

A child ASIN is a product associated with other products within a parent listing. Each child ASIN varies and hence, sellers create parent-child relationships for their inventory when they have a large inventory with lots of variations.

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How do sellers get an ASIN number from Amazon?


The seller needs to download a category-specific file template from Amazon. This can be found in the Add products via the upload section of your Amazon Seller Central account. Once a seller has filled in the file details, he is required to upload it to Amazon. Amazon will immediately process the file, generate new products, and allocate them ASINs.


The ASIN number is the core of Amazon’s product catalogue which allows the following perks to shoppers:


  • Shoppers search by boiling down through many categories.
  • Shoppers can search for a specific product using its ASIN 
  • Amazon delivers authentic and relevant product searches every time.

Are SKU and ASIN the same?

SKU (Stock Keeping Unit) is a special code that sellers can create for the listing. Whereas ASIN (Amazon Standard Identification Number) is an Amazon generated unique product code. ASINs can never be deleted from the seller account; they can be found again and then re-add to Inventory in the Seller Central account.

How to find ASINs on Amazon?

There are two ways to find ASINs on Amazon.

Product Details 


Go to the product’s detail page by browsing Amazon’s catalogue; there you will locate the ASIN or ISBN for books under the product description. 

Web addresses

The ASIN number of a product can be considered as an Amazon catalogue number. This number can effortlessly be found in the URL of the product listing. This is possibly the fastest and simplest means to search for the ASIN on Amazon. 

Why is it important to sellers?

ASINs are used as reference catalogue data, to track inventory for products, and to record catalogue pages for search and browsing on the Amazon website. A product’s ASIN allows Amazon to display the accurate product in the search results. Thus, for a seller, it is important to add the right ASIN identifier for the products. Contrarily, Amazon won’t be able to organize and search the products for an optimized shopping experience.


ASINs play an essential role in protecting brands from counterfeit sellers once registered with the Amazon brand registry. Furthermore, enrolling ASINs into the brand registry can unlock A+ Content, sponsored brand ads, and give sellers access to Amazon’s powerful brand dashboard.

Does every listed product on Amazon have ASIN?

Though most products on the Amazon marketplace are assigned an ASIN except books and e-books.

Instead of ASIN, books are given referenced by their ISBN or international standard book number. ISBN references titles at an international level. 

ISBN can be identified, tracked, and sold by stores, libraries, and other distributors. Similar to Amazon’s system of ASINs, ISBN makes organizing inventory, processing, and ordering easier.

Can a seller use an existing ASIN?

To list a product on Amazon, sellers can either use a prevailing ASIN or create a new one. However, if the product already has an ASIN then the seller doesn’t need to create a new one. He can still use the existing one as ASINs can be the same for the same product 

Mostly, Amazon prohibits developing a new ASIN when one already exists on the platform. If a seller ignores this then it can lead to the temporary or permanent suspension of the selling account. 

While organizing a listing using Amazon’s ‘Add a Product’ tool to the Seller Central account, the seller can search for existing ASINs by typing a product’s name, model number, UPC, EAN or ASIN.

How to create a new ASIN on Amazon? 

If you’re listing a completely new product, then a new ASIN to the Amazon product catalogue is required.

On the other hand, new sellers can only produce a limited number of new listings as long as an authentic sales record is created on Amazon. 

To create a new ASIN on Amazon, follow the below-mentioned steps:

  1. Go to Amazon ‘Add a Product’ tool
  2. Click on ‘Create a new product’. 
  3. Fill the form with the product’s details, including the product’s name, brand, colour, size and material type.
  4. The next step is that the seller will also have to incorporate a unique EAN or UPC number. A seller will find this information on a product’s barcode, label or from the manufacturer.
  5. After a seller has added a new product, Amazon will assign an ASIN.
  6. Click on Submit.

Once all the steps are complete, Amazon will assign the product an ASIN code and publish product details on the product page. 

Final Takeaway 

Every product that is being sold on Amazon must have an acceptable ASIN. With the number used in Amazon’s internal logistics, customers and sellers can easily find products and counterfeiters have a harder time. 

Creating a list of ASINs can be very helpful in always keeping an overview and regardless of whether a seller needs to find a listing, avoid counterfeits or simply want to reach out to Amazon’s support team.

Now that you know the nitty-gritty of ASIN this implies you’re one step closer to success. 

There are a plethora of things that Amazon sellers need to take care of which can make selling overwhelming. We understand how you feel about selling on Amazon. Use Asiwiser, an intelligent tool for Amazon sellers.. Get in touch with our experts to get the maximum benefit of this innovative tool.


Good Luck!