Cloud print system and control method thereof

A cloud print system including a printer, a cloud server, and a mobile device, executes printing of, by the printer based on an instruction from the mobile device, a print job submitted to and stored in the cloud server, wherein

• the cloud server comprises:
• one or more first memory devices that store a set of instructions;
• and
• one or more first processors that execute the set of instructions to:
• receive a print job submitted by a user;
• store the print job in the one or more first memory device;
• transmit, by push notification, information regarding the print job to a mobile device of a notification destination associated with a user who submits the received print job;
• and
• transmit the print job stored in the one or more first memory device to the printer based on an instruction for execution of the print job, and
• the mobile device comprises:
• a display;
• one or more second memory devices that store a set of instructions;
• and
• one or more second processors that execute the set of instructions to:
• receive the push notification from the cloud server;
• display a message on the display when receiving the push notification;
• and
• transmit an instruction for execution of the print job to the cloud server based on a user's operation on the message.