The document is a Buyers Guide focused on Supply Chain Planning (SCP) software. It provides a comprehensive assessment of various software providers and their products, evaluating them based on their capabilities in areas such as demand planning, logistics planning, and production planning. The guide outlines the evolution of supply chain planning, detailing its historical context and the technological advancements that have shaped its current state. It discusses the importance of accurate demand forecasting and the role of advanced algorithms and machine learning in enhancing forecasting accuracy. Additionally, the guide emphasizes the significance of collaboration among supply chain partners and the necessity for real-time data exchange. It also highlights the impact of artificial intelligence (AI) and generative AI on supply chain processes, suggesting that these technologies can improve agility and efficiency in planning and execution. The guide concludes with an evaluation of 22 software providers, assessing their offerings against the defined criteria for effective supply chain planning.