What Is an ASIN (Amazon Standard Identification Number)?

An ASIN is a 10-character alphanumeric code that Amazon assigns to each product in its catalog. It can be viewed in the Product Details or Product Information sections of a product page. Each variation of a product is assigned a unique ASIN to distinguish it from other versions of the same product. Amazon uses ASINs to systematically identify, track, and manage billions of products sold on its website. It helps reference catalog data, track inventory, and index catalog pages to suggest relevant, accurate products to customers in search results.

How ASINs Are Assigned

Amazon automatically assigns ASINs once a new product is added to its catalog. Sellers need to create a Product Details page that includes product identity, description, product details, offers, and safety and compliance sections. Once a listing is submitted, Amazon reviews it and, if the page meets the requirements, assigns a new ASIN to the product.

A seller must first check whether a product already exists on Amazon using the product’s GTIN (Global Trade Item Number). If it appears in the results, the seller must use the existing ASIN. However, if the item doesn’t appear in the search results, a new listing should be created and a new ASIN obtained.

Where to Find an ASIN on Amazon

You can find a product’s ASIN in the Product Information or Product Details sections on every product page. It also appears in the page URL after the product name and the dp (detail page). To find multiple ASINs at once, use a software tool.

Best Practices for Managing ASINs

Here are the best practices for managing ASINs to improve search visibility, inventory accuracy, and sales performance.

• Audit the entire catalog frequently to identify errors in inventory, tracking, and reporting
• Use high-quality content (optimized titles, descriptions, and keywords), images, and accurate product specifications to improve search rankings
• Track key performance metrics for each ASIN, including conversion rate, click-through rate, and sales
• Check for suppressed listings and address them promptly to avoid lost revenue
• Proactively monitor inventory and sales to prevent stockouts and overstocking