Do you mean this?
DATA: f_langu TYPE SY-LANGU.
[...]
IF f_werks = '2000'.
f_langu = 'SR'.
ELSEIF f_werks = '1100'. " or simplest "ELSE"
f_langu = 'IT'.
ENDIF.
call function 'OPEN_FORM'
exporting
device = 'PRINTER'
dialog = space
form = print_co-forml
language = f_langu
options = print_opts
exceptions
canceled = 01
device = 02
form = 03
options = 04
unclosed = 05.
call function 'START_FORM'
exporting
startpage = startpage.
Message was edited by: Massimiliano Beghini I did a mistake with the "else" option.