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Former Member
Dec 12, 2013 at 06:43 PM

'Empty Scheduling Interval' - CTM does not plan


Hi ,

I have a BOM structure with Finished good (FG) A and Component B. Component B has 8 weeks SNP production Horizon.

No PPDS horizon maintained

Master Data settings:

Select Dependent data automatically

Perform only single level selection

CTM Profile settings:

1. Tried both Keep Lateness to minimum & Standard scheduling

2. Fixed Pegging/Backward scheduling

3, Re plan all order & Delete orders that are not firm.

When I plan this way CTM creates planned order (uses 50% of production order sitting on Component) on FG after one year horizon and most of the demands are not fulfilled. The explanation log says “ Empty scheduling interval’ No scheduling after 12/11/2014 (On year from now) or before Demand date + (198 days –which is our Late demand fulfillment days)

IF I check the Ignore master data à Production Horizon it plans correctly but creates planned order inside the production horizon.

Heuristic plans correctly as expected respecting Horizons and creating one big component planned order on 9th week after SNP production horizon. Can we expect the same with CTM?

PS: We need to differentiate planned orders from each FG so we need CTM. (FG A and FG B can have component B) Cannot run Heuristic as it will just give one big planned order on component.