For example, 80% of the planned quantity must be purchased at the end of the contract, which can take a year or two. The most difficult part of a contract is to determine the expected forecast amount of the product user. Since the expected quantity can be difficult to obtain, the supplier needs to know how much should remain in stock. A simple way to do this is to discuss with the buyer the quantity to keep in stock. For example, in the first 6 months, they can only hold 20% in stock, so the supplier and buyer are able to check the quantity and adjust it accordingly…