A system and method are provided for checking product availability for a listing on a network-based auction service using a separate auction application where an available quantity is determined from information received from a business information management system and the available quantity is displayed...http://www.google.com.hk/patents/US7627500?utm_source=gb-gplus-share專利 US7627500 - Method and system for verifying quantities for enhanced network-based auctions
