Fixed lead time is not dependent on the order quantity, as opposed to dynamic lead time. Fixed or dynamic lead time is decided per product in the MO-lead time method in 'Item. Connect Facility' (MMS003).
For each operation, fixed lead time is entered as the number of days before the finish date (Dbf) that the operation should begin. Therefore, the first operation defines the total lead time. Transport- and queue times do not affect lead time.
Lead time compression can be done for orders with a fixed lead time by changing the finish date or start date. A percentage displayed on the order shows how much the order was compressed.