This chapter is about supply chain network design and how that affects the customer. Lots of times, a bad network design results in lost sales to the customers, meaning there is no product for the customer to buy $($stockouts$).$ Is there a way to quantify the cost of lost sales due to stockouts??This chapter is about supply chain network design and how that affects the customer. Lots of times, a bad network design results in lost sales to the customers, meaning there is no product for the customer to buy $($stockouts$).$ Is there a way to quantify the cost of lost sales due to stockouts??