there are advantages, disadvantages and overall preference. First of all, it is a way of drainage, which can bring a large number of customers, but it attracts customers through low prices, which easily leads to a vicious circle and low profits. Therefore, it is best to use group buying to expand profits, such as bundling sales and improving services. In order for customers to send money unconsciously, proper use of group buying can not rely entirely on it! Improving service and product quality is the key!