Third-party logistics (3PL) refers to the outsourcing of logistics and distribution activities to a specialized provider by offering a wide array of services which can manage and execute the supply chain functions involved in a business. Warehousing is one of the main functions of 3PL and it includes transportation management, inventory management, and fulfillment services. Technological features are vital to 3PL, using advanced software systems for tracking, inventory management, shipment planning (resource optimization) and logistics operations. In various sectors, from retail and manufacturing to healthcare and technology these applications mean that products are delivered effectively and efficiently to the end consumer every time. 3PL providers integrate seamlessly into a company's existing operations, often leading to increased overall productivity and lower overall costs associated with management of logistics.