Bullwhip effect is bad to logistic. For example, the customer purchase coffee in local store as usual without additional purchase. But at the same time, the local store is miss forecast for the demand of coffe. Hence, local store place additional order to distributor, and distributor is placing additional order to manufacturer. When local store in finally realize their doing wrong is forecasting demand of coffee, local store will stop ordering coffee. In this situation, distributor stockpiles extra coffee and manufacturer is overproduces coffee as well. Manufacture and distributor will need to store excessive inventory in their warehouse which will increase their inventory handling cost.