Abstract: A information processing system according to an aspect of the present disclosure includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: identify, when a discount condition is satisfied in a case where two or more unregistered products and one or more registered products that were registered by an operation by a customer using a portable terminal are purchased in a set, a combination of the unregistered products including the two or more unregistered products; and notify the portable terminal of the identified combination of the unregistered products.

Abstract: The system has an identification unit, an acquisition unit, a generation unit, and a display control unit. The identification unit identifies a customer. The acquisition unit acquires a shopping list including information on the product the identified customer is purchasing. The generation unit generates a route from a display device to the product included in the acquired shopping list, on the basis of the location of the product and the location of the display device. The display control unit displays the generated route on the display device.