Modify a scheduled release using Schedule Maintenance (5.5.3.3).

You can change schedule detail data such as requirement dates, quantities, and firm or planned status, and fab and raw authorization quantities and dates.

You cannot update a schedule release if the scheduled receipt date is outside of the scheduled order line effective date range. Scheduled orders have both header and line start and end effective dates. When processing the order, the system uses the line start date and the later of the header or line end date as the active order line date range.

See Effective Dates.