How would you show the Production line on an S&OP supply & demand spreadsheet for a lean pull production line?
The title and definition of a production plan would not vary between a lean or not lean environment. A lean environment does not preclude making some product to stock (or to a “finished goods supermarket” as it is often called). And it does not require that a product be made-to-order. In a pure make-to-order environment, when the finished product is never made without a customer order, the monthly production plan would be equal to the monthly sales (bookings) plan less any adjustments to the order backlog. In other words, in situations where you are taking orders today, and promising them 6 weeks in the future but want to be promising them for delivery in 4 weeks, then the monthly production plan will have to be greater than the sales plan for the current month by the amount you want the backlog to decrease (in this case 2 weeks). And of course the opposite can be true too. If you want the order backlog to increase, the production plan will have to be less than the sales plan. What is
