Amazon shipping packing groups will be merged based on order information and factors such as the size and weight of the items. When the system generates a waybill, the packing groups will automatically match and merge according to the attributes of the goods to achieve the best package matching and save on express delivery costs. In addition, in actual operations, the packing groups will also be manually adjusted according to factors such as the type and size of the items to ensure that the goods are delivered to customers safely and efficiently. In order to improve efficiency and reduce transportation costs, Amazon has also adopted a series of optimized packing technologies, such as Frustration-Free Packaging and Amazon Certified Packaging, to ensure that orders can be processed and delivered to customers more quickly. In addition, Amazon also encourages sellers to choose appropriate product packaging to reduce damage and waste and provide customers with a better shopping experience.