ONLINE BUYING AND SELLING METHOD BY MUTUAL AGREEMENT AND SYSTEM THEREOF

摘要

The present invention relates to an online agreement sale method and a system thereof, and the online agreement sale method according to the present invention provides an online agreement through a settlement sale server and a purchaser terminal connected to a predetermined network. Steps; And performing a supply contract for at least one derivative service derived from the product online through the settlement sales server and the purchaser terminal. As a result, in buying and selling goods online, information on product selection can be obtained before the purchase of goods, thereby making it possible to faithfully purchase goods, and a delivery-related service contract derived from the goods purchased online is made. It can be handled in batches, greatly saving time and effort for both sellers, buyers and derivative service providers.