WD Message Manager - collect messages

Hi All,

we work with 2 WD-applications reporting their message in the messagearea of WD-application#1

How can I report messages without losing existing messages?

I found note 940762 in this forum saying that it is possible to collect message using the parameter is_permanent or/and scope_permantent_msg.

example:

CALL METHOD lr_message_manager->report_exception

EXPORTING

message_object = lr_exc_core

• IS_PERMANENT = ABAP_FALSE

SCOPE_PERMANENT_MSG = 0.

Can anyone describe the differences between the 2 options?

What else can I do to collect messages?

Thanks, Martin