Messages Without Screens (SAP Library - BC

Messages Without Screens

This context applies to all situations that do not belong to any screen processing. In ABAP programs, this includes the following processing blocks:

PBO modules (PBO of screens)
The selection screen event AT SELECTION-SCREEN OUTPUT (PBO of a selection screen)
The reporting events INITIALIZATION, START-OF-SELECTION, GET, and END-OF-SELECTION
The list events TOP-OF-PAGE and END-OF-PAGE

All other processing blocks are associated with screen processing (reacting to user input).

Message Processing

Type	Display	Processing
A	Dialog box	Program terminates, and control returns to last area menu
E	In PBO context, the same as type A, otherwise status bar	In PBO context like type A, otherwise, program terminates and control returns to point from which the program was called
I	In PBO context, the same as type S, otherwise dialog box	Program continues processing after the MESSAGE statement
S	Status bar of next screen	Program continues processing after the MESSAGE statement
W	In PBO context, the same as type S, otherwise status bar	In PBO context like type S, otherwise, program terminates and control returns to point from which the program was called
X	None	Triggers a runtime error with short dump