Inventory Bug Struck on Black Friday
An inventory-checking glitch which led to sales to customers of items that were not actually in stock affected several major retailers on Black Friday.
According to a special multipart report on website Storefront Backtalk, the functionality whole affected Target, Fry's Electronics, Buy.com and other retailers. The site attributed the glitch largely to more and more websites launching sales on specific items that began at specific times, such as midnight or 2 a.m. on Black Friday. So when customers placed orders, the systems had no way of notifying them that the item was out of stock.