userexit VA01

hi,

while creating a order for a customer and saving through VA01, i need to get the condition record for the combination of customer and material.

i'm trying to code this in the perform USEREXIT_SAVE_DOCUMENT_PREPARE. But at that point of time XKOMV[] doesn't contain any records for PR00..

after creating order, i found PR00 records r also there

where i need to code this?

thanks in advance