Alternative relationship determination apparatus, alternative relationship determination method, and alternative relationship determination program

摘要

There is provided a product purchase support apparatus capable of reducing a possibility that a user misses a benefit which he/she can enjoy if he/she purchases further products. A benefit given when a product is purchased and a benefit application condition necessary for applying the benefit are held as benefit information per benefit, and when the benefit application condition is not met, a different product meeting the benefit application condition, which is met by purchasing the different product from and in addition to user-desired products, is extracted and presentation information for presenting the different product and the benefit application condition to the user is provided to the terminal.