How to update database table using report program

Hi guys,

i have a requirement to update customer data in table knvv, here i have enhanced tcode XD01 with extra tab

having 2 fields. no i m trying to update customer master based on division using LSMW.but in recording i am

unable to see the custom tab.

now i m trying to update database table KNVV directly through report program,unable to change the records.

please suggest any solution.

Thanks,

Umakant.