Embodiments of the disclosure relate to a system including a terminal having a Web browser, a client, a resource server, and an authorization server. According to some embodiments, the client creates a redirect URL indicating a transmission destination of an authorization code used for obtaining an access token for each customer tenant, and the client that has received a request for starting a coordination from a Web browser transmits the redirect URL of a customer tenant specified from information transmitted by the Web browser to the resource server together with a client creation reservation.