The ‘Secret Sauce’ to Improving Demand Planning

How do you get the sense of what works for demand planning? Market volatilities including changes in the weather can affect any business at any given time. As such, businesses cannot rely on their history alone without considering the full picture of possible market changes. When these changes occur, businesses should be ready to adapt without causing a disruption in existing business processes. So how to do you get to the point where you get a sense of what works when it comes to demand planning?