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What is an ASIN?

Amazon's own ID for every product in its catalog.

ASIN stands for Amazon Standard Identification Number - a ten-character code (like B0BXXXXXXX) that Amazon assigns to every product in its catalog. It is Amazon's internal ID: one listing, one ASIN, shared by every seller offering that exact product.

For an arbitrage seller the ASIN is the unit of everything: you match a retail product to an ASIN, you check the ASIN's price history and sales rank, you decide whether you are allowed to sell that ASIN, and you compete for its Buy Box. Sourcing tools work by matching retail products to ASINs - primarily by barcode, with title matching as a fallback - and pricing the difference.

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Every scan result carries fees, profit, ROI and the price history - the terms above, applied for you.

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More terms

UPC / EANBSR (Best Sellers Rank)Buy BoxFBAFBMSeller CentralReferral feeFBA fulfilment fee

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Frequently Asked Questions

How do I find a product's ASIN?＋

It is in the product page URL after /dp/, and in the Product information section further down the page. Sourcing tools surface it on every result, and the Chrome extension shows it on the retail side too.

Can two sellers share the same ASIN?＋

Yes - that is the design. One catalog listing per product, many sellers offering on it. You do not create a new ASIN for an existing product; you add your offer to the listing that already exists.