By enabling this feature, the system will lock the price and discounts of the sales lines in the commerce orders. This lock will ensure that the prices and discounts of these sales lines do not get updated if the order is modified. If the user wants to include one or more of these sales lines in the price calculation, then the user needs to uncheck the price lock property of these sales lines and then trigger the recalculation of prices. Note: If this feature is turned ON, then the “Trade agreement evaluation” capability is disabled for the commerce orders.