The term 4.0 has become a standard feature in all discussions about the future of industry and society today. It encompasses attributes related to digitalization, increased flexibility in value creation, and enhanced global competitiveness. Nowadays, all areas of life are being characterized by this modern complementary feature: work, organization, suppliers, leadership, risk, logistics, and many more. This book examines purchasing and purchasing management in terms of its 4.0 design. Purchasing management is on its way to becoming an equal function within corporate management. However, there is a particular tension between expectations and the current implementation of Purchasing 4.0, which can be attributed to a lack of transparency regarding benefits.