The system uses an average manufacturing lead time calculated from averages of queue, setup, run, subcontract, wait, and move times for routings. The calculation assumes the average order quantity for the item-site or item.

The operation start and stop dates indicate when an order will occupy a work center. Queue time precedes the start date. Setup, run, and subcontract times fall between the start and stop dates. Wait and move times follow the stop date.

When an order quantity differs significantly from the average order quantity, the system may allow too little or too much time to complete the order. The greater the difference between the actual quantity ordered and the average order quantity, the less likely it is that these dates will be realistic or reasonable.

See Lead Times for details.