SALES SYSTEM USING A COUPON

摘要

PURPOSE: A selling system using a coupon is provided to attract clients by converting unused coupons among limited discount coupons which a client purchased into remaining money. CONSTITUTION: A coupon issuing server(20) issues limited coupons as mobile coupons. The coupon issuing server stores coupon issuing information about the issued mobile coupons. A communication company server(18) transmits the mobile coupons to a client mobile communication device(16). A sales system(12) obtains information about the mobile coupons. A remaining money server(22) extracts remaining information as a coupon sales information.