Grouping material requirements of Bottom level WBS
We are stucked on material requirement planning
We are assigning the various BOM to level 3 WBS and taking MRP on it thru MD51.
The final product which includes all BOMs at bottom level is assigned to level 2 WBS.But while running MRP on level 2 WBS system regenerates the requirements which already part of bottom level BOM. I want to avoid it.
How shuld I achieve this ?