Amazon’s mission is to offer Earth’s Biggest Selection and the best online shopping experience. An important part of this experience is to give buyers great search results with a single, authoritative listing for each product (a challenge eBay is trying to address). Amazon’s UPC / EAN enforcement (required to list) is designed to build this mother-of-all-catalogs but there are legacy problems

Last week I spoke to an Sports & Outdoor online retailer that struggles with duplicate product listings: Read more