COUPON MANAGEMENT DEVICE, COUPON MANAGEMENT METHOD, PROGRAM, AND RECORDING MEDIUM

摘要

A distribution unit (101) distributes coupons with preset expiration dates to customers. When an inquiry regarding the expiration date set for a coupon is received from a customer who has received the coupon, an extension unit (102) acquires the expiration date set for the coupon from a distributed coupon database (DB) (122). If the acquired expiration date has expired, the extension unit (102) extends the expiration date set for the coupon. Also, the extension unit (102) determines the extension period on the basis at least the total number or total amount of coupons that have been distributed to other customers and have not yet expired. A response unit (103) replies with the expiration date set for the coupon in response to the inquiry.