Abap: Net price is not updating in va01/va02 tcode

I have created an enhancement . The condition record values are updating but net value in the header of sales order is not being updated.

I have written this code in the include LV61AA43.

Where i can write the code to update the Net value.?

MODIFY XKOMV FROM WAXKOMV TRANSPORTING KWERT WHERE KSCHL = 'ZCPR'.