Hi
I have sales order requirement with delivery date 6 april 2010. As per OPU5 , i can scedule it 170 days past.
Bom is having 3 levels.
When MRP is done then for header material, planned order start date goes back to 14 days and it is ok.
but for next levels system does forward scheduling. It should do backward scheduling from start date of header planned order . routing times of next levels is not more than 14 hours.
In opu3 though 170 days maintained in start in past why system is not doing backward scheduling for sub-assembly levels.