This field identifies the date this operation must be started. The date is determined by the Scheduling mode and by the Scheduling status fields, as follows:
- If this work order is 'Not scheduled', this operation's start date matches the start date for this work order (as defined on the Header).
- If this work order is 'Scheduled', this operation's start date will be the earliest date this operation can start according to the scheduling process. That is, this date will be determined by the sequence of operations in time according to the durations, slack times and relationships in the routing.