An information processing system, which includes one or more computers, includes a reception part configured to receive a request addressed to one of multiple destinations, a generation part configured to generate authority identification information for identifying operation authority to operate an apparatus in a case where provision of the operation authority is authorized based on a condition that differs depending on a combination of the destination of the request and a transmission source of the request, and a transmission part configured to transmit the authority identification information to the transmission source of the request.