Management server, management method, and program

Disclosed is a management system for management of schedules of delivery of products directed to users that allows users to exchange products before delivery of the products. A management server in the management system manages schedules of delivery of products directed to users using a database. A first receiver receives a first selection of selecting a first schedule of delivery of a first product directed to a first user defined as a first destination, from a first terminal used by the first user. A second receiver receives a second selection of selecting a second schedule of delivery of a second product directed to a second user defined as a second destination from a second terminal used by the second user. In response to reception of the first and second selections, an exchanger exchanges the first destination involved in the first schedule with the second destination involved in the second schedule.