An information processing apparatus provides a sharing service of enabling information to be shared by one or more terminal apparatuses, the information processing apparatus being capable of communicating with the one or more terminal apparatuses, and the one or more terminal apparatuses being associated with a group; receives first identification information from each of the one or more terminal apparatuses; and associates the first identification information with the sharing service. When having associated the first identification information with the sharing service, the information processing apparatus associates, with the group, the one or more terminal apparatuses having received the first identification information from outside and having transmitted the first identification information; and provides the sharing service of enabling information to be shared by the one or more terminal apparatuses that are associated with the group.