Method and apparatus for providing subscription notification service

A server interworking with a messaging server to provide a subscription notification service, the server comprising at least one processor configured to:

• extract data on a subscription notification, of which a date is approaching, based on a database storing information about the subscription notification set in response to a concluded order book;
• request the messaging server to transmit a notification message corresponding to the subscription notification data based on seller's identification information and buyer's identification information comprised in the extracted subscription notification data;
• generate a to-buy list comprising order information of at least one first product corresponding to the subscription notification data in response to a purchase request through the notification message;
• and
• provide the generated to-buy list to a terminal of a user transmitting the purchase request.