Customer master with holding tax data
I am working on customer master transaction 'XD01'. I want add new fields to the existing subscreen 'with holding tax' and new fields in the new subscreen. There is no enhancement is available for this, but there a BADI 'CUSTOMER_ADD_DATA_CS'. But with this we can not update the data to table KNBW(with holding tax data). Can anybody worked on this type of requirements.
Thanks in Advance