Field help (FDMA1)

Operation start dates are scheduled according to the scheduling rules (as determined by the Scheduling mode and the Scheduling status fields). However, this operation should only be scheduled to start on a date when the full quantity of each component required for this operation is available. This date is calculated by your system. It is a suggested earliest date when the full quantity of each component required for this operation is available.

Many factors affect the availability of a component such as demand and replenishments, free stock and lead times. The calculation observes the following principles when determining each component 'first availability' date and therefore the associated operation 'earliest start' date:

• It recognizes existing assignments;
• It consumes any free (available) stock (where Free stock=Physical stock - Allocated stock - Assigned stock);
• It considers expected receipts;
• It determines if unassigned stock awaiting partial assignment to an order can be used;
• It makes minimal changes to existing assignments;
• Where shortages (calculated as Demand - Allocated stock - Assigned stock > 0) exist, it runs the calculation based on the lead time for the shortage only.

 The scheduling process does not consider component availability when determining operation start dates. This date is only a reference date. It is an indication of the 'First Date of Material Availability'.

 If you use Production Scheduler, Sage X3 Web Scheduling or a web scheduler for detailed planning, the scheduler can use the calculated earliest operation start date as a constraint in the optimization of the operations.

 For detailed scheduling, Activity code POPS activates the Production Scheduler functionality or the Generic finite scheduler interface.

 Production Scheduler only applies to on-premises instances of Sage X3. The Generic finite scheduler interface provides an integration connector to any web scheduling solution for either cloud or on-premises solutions.