Abstract: A common program causes a server to function as an identification information registration unit that stores a user identification in association with a verification identification different from the user identification when an individual program newly stores the user identification in a database that stores information of users, an acquisition unit that acquires the verification identification associated with the user identification when an individual program requests a connection to the database based on the user identification, an addition unit that adds information including the user identification after assigning the verification identification acquired by the acquisition unit when the individual program adds the information to the database, and a manipulation unit that manipulates information including the user identification stored in the database on the basis of the verification identification acquired by the acquisition unit and the verification identification associated with the information when the

Abstract: The expense information management method contains acquiring expense information including a plurality of pieces of input information showing contents of an expense, determining whether or not a purpose type showing a purpose of the expense is a first type based on at least one piece of input information among the plurality of pieces of input information, storing the expense information corresponding to the expenses determined to be the first type in a first storage unit, and storing the expense information corresponding to the expenses determined not to be the first type in a second storage unit that is different from the first storage unit.