Information processing apparatus for ordering vehicle parts

An information processing apparatus for managing a first site for accepting an order for parts for a vehicle, comprising:

• a user terminal;
• and
• a server having a communicator and a controller, the communicator communicates with the user terminal via a network, and the controller includes at least one processor and a memory storing a database having attachment availability information for each part in association with first identification information that uniquely identifies a first vehicle and program instructions executable by the at least one processor to:
• obtain the first identification information by triggering that a user logs in to the first site through a browser of the user terminal;
• identify a first part that can be attached to the first vehicle without changing a function of parts already installed on the first vehicle and without removing parts already installed on the first vehicle, based on the first identification information and information stored in the database;
• post a parts list in which the first part can be identified on the first site through the browser of the user terminal;
• determine whether a first request signal is transmitted from the user terminal to the server;
• identify a second part included in an order schedule list for the first vehicle in response to receiving the first request signal from the terminal used by the user;
• and
• exclude a part that competes with the second part and the second part from a target of the first part.