VF01: 2nd line item value becomes 0

Hi Friends,

if I save the document in VF01 with two line item then the second line item net value and cost are stored as zero. I have debugged the program, the FM PRICING_COMPLETE changed the value is as 0 (table is TKOMP). how we find the this?. what are user exit and BADI. I'll check it there is any user exit/badi.

Thanks with Regards,

Vallamuthu M.