Demand planning is a systematic process of predicting customer demand to help businesses better manage the supply chain. It uses advanced analytics and technology to forecast customer orders and optimize inventory, storage, and transportation costs. By taking into account factors such as seasons, promotions, rival offerings, and customer behavior, demand planning can help companies make more informed decisions about how much product to produce and how to allocate resources. In short, it helps ensure that businesses have the right products available when their customers need them most.