Business Logistics is a systematic approach to management and controlling of the physical flow of material goods and information that company sends and receives from the market. Modern logistics has left the traditional, all in favor of more active movement of materials and goods through the logistics system. The logistics system is a set of elements (order, delivery, warehousing, inventory management, transportation and handling of goods). The basic task of the sales department of the company is the maximum possible sale of the produced goods. It consists of a series of tasks that start with preparation, and ends with analysis and sales control. For many systems, and for all economic subjects, it has become very important to monitor and apply new information technology that brings with it technical and technological progress of globalization. In order to provide customer service, logistics needs to understand customer expectations. Customer service is one of the most important tasks of integral logistics. Quick response becomes part of the way of life for many companies today. This means that companies that have developed a "quick response" have the ability to survive in today's market. ECR - Effective customer response is a concept introduced in the consumer goods industry. Its goal is to reduce the ordering cycle time. Wal-Mart is a leading retailer in the world with more than 4000 stores in the US. One of the most important things that is known in this retail giant is the excellence of the supply chain. Walmart has been practicing a strategic source to find its products at a favorable price from suppliers that are able to secure and meet its demand. Also, it focuses on the continuous development of new technologies and the development of good communication links with suppliers.