The document discusses key account management (KAM), which involves targeting and serving high potential customers with complex needs. It provides examples of companies like P&G and FedEx that use KAM. It outlines the advantages of KAM, such as improved communication and higher sales. However, it also notes disadvantages like increased dependence on few customers. The document then discusses the tasks, skills, and success factors involved in effective KAM, such as developing long-term relationships, technical support, and trust between supplier and customer.