In a previous post we talked about the ATP backwards supply fence it’s counterpart on the demand side is the demand fence. This is to determine how far you look back for delayed shipments. If you don’t you run this risk of potentially over promising inventory depending on how you manage supply. The idea being that when you are putting in an order and run delivery data control then it’s going to check data as of today. There might be orders in the past that haven’t been shipped because the inventory hasn’t come in so you want to tell the system how far back to look for those delayed orders.
Keep in mind that in the video we just set the setting at the accounts receivable parameters but there might be variation you want to do at a item or site level with the default order settings and site specific settings on an item.