A print managing server is connected to a plurality of printers through a network and stores print data which can be printed by the printer in combination with user information. The print managing server has control means for controlling execution of a command including the user information which is received from the printer. The control means controls in such a manner that when the command is received, if a printing process corresponding to the user information included in the command is being executed for the other printer, the printing process which is being executed is stopped for the other printer and a process corresponding to the command is executed.