"not possible to determine any components"

Hi all,

I have Made customization for NPD as BOM Usage 2 i.e (engineering/design) i have maintained all the entry & checked all entries related to PP is OK , when we r making Subcontracting PO components are not determining ,

i have checked by creating BOM for a same material as usage 1... subcontracting PO it determining the BOM components , every thing is fine...

please Can anyone tell-me wt entry i need to maintain to determine bom component

regards,

bharath