To enable a third party organization to accurately recognize whether or not sales are gathered strictly in a game parlor.

A management server 200 comprises: a communication condition decision part 251 for specifying a ball lending processor 20 in which a communication function with the management server 200 is secured when opening the parlor and then deciding whether or not a communication function with the ball lending processor 20 is secured when closing processing thereof; a notification condition decision part 252 for deciding whether or not sales information is notified from the ball lending processor 20; and a sales establishment condition decision part 253 for deciding that the sales information in the management server 200 is established when it is decided that the communication function with the ball lending processor 20 is secured by the communication condition decision part 251 and it is decided that all the sales information is notified from the ball lending processor 20 by the notification condition decision part 252.