how to validate BOM data

hi experts,

i am doing BOM Upload for PP module. i am getting data from flat file to internal table, my question is how to validate that data.with which table i need to compare those data for validation.

my internal table is

DATA: BEGIN OF i_bom OCCURS 0,

matnr(18),

werks(4),

stlan(1),

stlal(2),

stktx(40),

bmeng(16),

menge(16),

posnr(4),

postp(1),

meins(3),

idnrk(18),

potx1(40),

ausch(7),

END OF i_bom.

points will be rewarded for all helpful answers

regards,

pavan

Edited by: pavan kumar pisipati on Jan 9, 2008 7:09 AM