An information processing system that includes a service providing unit providing a service to an apparatus associated with a license; and a license administration unit administrating a provisionally registered license or a registered license, wherein the service providing unit includes a second memory storing a copy of license information, and an activation unit that receives a request to activate the license from the apparatus, activates the provisionally registered license or associates the registered license with the identification information of the apparatus, and requests a change of the license information stored in the second memory unit to be reflected on the license information stored in the first memory unit, wherein the activation unit adjusts a quantity of the identification information of the apparatus associated with the registered license based on the quantity of the apparatus by which a service included in the license information is made usable.