A user management method according to the present disclosure includes: storing appliance use information including: appliance identification information for identifying an appliance; user information for identifying a user of the appliance; and an operating state of the appliance when the appliance was used; analyzing the appliance use information stored in the storing to identify, from among a plurality of functions of the appliance, one or more first functions each having a use frequency less than or equal to a threshold value; and providing the user with a notice which prompts use of the one or more first functions identified in the analyzing.