Supply Chain Planning (SCP) is a set of processes and technologies used to forecast demand, plan production, manage inventory, and align supply with customer requirements. It spans strategic, tactical, and operational horizons. SCP integrates data from sales, operations, procurement, and logistics to optimize end-to-end processes. Misaligned planning leads to inefficiencies, excess inventory, or poor customer service. Modern SCP platforms incorporate inventory optimization to balance supply and demand dynamically. They enable scenario modeling, collaborative planning, and real-time responsiveness to market shifts or supply disruptions.