Amazon has built an extensive global distribution network to support its e-commerce business. It operates numerous fulfillment centers worldwide that use highly automated processes to pick, pack, and ship a large volume of small parcels. Amazon obtains inventory through various channels, including direct purchases from publishers/suppliers, dropshipping, and third-party sellers. It aims to collaborate closely with suppliers and partners to increase efficiencies and optimize inventory levels through just-in-time and vendor-managed approaches. Amazon's distribution network is key to providing customers with a wide selection of products and a plethora of delivery options.