Supply chain management involves coordinating business activities like production, procurement, and logistics to maximize customer value at minimum cost. It aims to integrate key processes across the supply chain. SCM definitions emphasize providing the highest customer satisfaction at lowest cost through material and information flow management. It encompasses planning and managing all sourcing, procurement, conversion, collaboration and logistics activities. E-procurement uses internet technologies to facilitate B2B, B2C and B2G purchasing. Benefits of SCM include improved networks, lower costs, better collaboration and increased revenue.