Hi Suhale,
i don't getting why you have written like this, the syntax you have used are used when we used
join conditions.
Simply write your logic as shown below
SELECT werks budat qualf urcod arbpl katalogarturgrp urcod version
iserh
INTO CORRESPONDING FIELDS OF TABLE itab1
FROM zctsi_pw
WHERE werks IN so_werk
AND budat IN so_budat
AND arbpl IN so_arbpl
AND aufnr IN so_aufnr
AND urgrp IN so_urgrp
AND urcod IN so_urcod.
One thing more have you used SELECT-OPTIONS or PARAMETERS
if parameters, then you have to change these declarations.