The workbench uses sequence numbers and due dates to resolve scheduling conflicts. When two production runs are scheduled for the same due date but there is only enough capacity for one, the system gives priority to the one with the lower sequence number. After planning the first production run and making adjustments for changeover time, it plans output for the second production run. Because the system uses finite loading, the first scheduled due date for the second production run may be later than the date originally entered.

Whenever you create or modify a sequence record, the system automatically reschedules the production quantities and dates and reassigns new sequence numbers. To insert a new production quantity between two existing quantities, enter a sequence number with a value between the two and a due date equal to the earlier of the two dates.