INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND NON-TRANSITORY STORAGE MEDIUM

An information processing apparatus of the present disclosure in a mode in which a plurality of users share the same vehicle sets, when determining a combination of a driving user and fellow users, a scheduled traveling route which is a scheduled route along which the vehicle travels from a getting-in spot to a getting-off spot of each of the fellow users. Upon detecting that the vehicle is traveling off a scheduled traveling route while the fellow users are in the vehicle, the information processing apparatus transmits warning information which is information warning a first user terminal of the driving user and a second user terminal of the fellow user that the vehicle is traveling off the scheduled traveling route.