no info in header - /iwbep/if_message_container

Hello,

I am not sure what is the problem,

i am coding like this:

lo_container->add_message(

exporting

iv_msg_type ='S'

iv_msg_text = 'YYYY'

iv_msg_id = '1'

iv_msg_number = '0'

iv_add_to_response_header = ABAP_TRUE

).

it works of course when i add code of raising exception like this:

RAISE EXCEPTION TYPE /iwbep/cx_mgw_busi_exception

     EXPORTING

         message_container = lo_container.

But i dont want http status 400. I want only to add info to header. Is it possible without raising exception ?

Lucas