ups perdon ja ja ja
no me di cuenta que la segunda y tercera tabla eran la misma esta es la expresion correcta
SELECT e~kunnr e~name1 e~name2 e~stras p~ort01 e~land1 e~pstlz p~name1
INTO TABLE t_cliente_aux
FROM kna1 AS e INNER JOIN knvk AS p
ON e~kunnr = p~kunnr
INNER JOIN knvv AS r
ON r~kunnr = e~kunnr
WHERE r~vkorg IN pi_org_ventas
AND r~spart IN pi_sector
AND e~kunnr IN pi_codigo.
saludos
