Customer Master. If I go to RSA6 in R/3 and go to extract structure BIW_KNA1_S in customer_attr , I find fields Customer condition group 1, 2 , 3 , 4 and 5. In my BW Customer master these fields are not present. So how can I enhance my customer master in BW to get these fields in master? Could anybody provide me the step by step procedure?