SAP ABAP MESSAGE LIST PROCESSING documentation, setup help and example usage

ARTICLE

Messages in List Processing
During list processing, a message of type "W" is always converted to type "E" before further context-dependent handling takes place. The message is then handled in accordance with the other context.
List processing is active in the following contexts with respect to messages:

In all executable programs called using SUBMIT

as long as no dynpro sequence called using
CALL SCREEN is being processed there.

After list processing is called explicitly using LEAVE TO LIST-PROCESSING in a dynpro sequence. The statement

LEAVE LIST-PROCESSING switches list processing off during a dynpro sequence.
In programs called using SUBMIT , list processing is active, therefore, apart from when actual list events
are being handled (even when
reporting events are being handled). This is especially true for the standard event START-OF-SELECTION .

Note
Background jobs are always started using SUBMIT , which means that list processing is usually also active at the same time.