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ABAP Keyword Documentation →  ABAP - Reference →  User Dialogs →  Messages →  Behavior of messages 

Messages in Dialog Processing

The behavior of messages sent when programs are executed in dialog processing (in accordance with the dialog modules or event blocks in which the messages are sent) is displayed in the table below:

Processing Block            Message Type
--------------------------------------------------------------
                            A     E     I     S     W     X
--------------------------------------------------------------
PAI module                  1     2     3     4     5     6
PAI module for POH          1     7     3     4     7     6
PAI module for POV          1     7     3     4     7     6
PAI module for function "E"   1     7     3     4     7     6
--------------------------------------------------------------
AT SELECTION-SCREEN for PAI  1     8     3     4     9     6
AT SELECTION-SCREEN for POH  1     7     3     4     7     6
AT SELECTION-SCREEN for POV  1     7     3     4     7     6
AT SELECTION-SCREEN ON EXIT 1     7     3     4     7     6
--------------------------------------------------------------
AT LINE-SELECTION           1    10     3     4     E     6
AT PFnn                     1    10     3     4     E     6
AT USER-COMMAND             1    10     3     4     E     6
--------------------------------------------------------------
INITIALIZATION              1    11     3     4     E     6
START-OF-SELECTION          1    11     3     4     E     6
GET                         1    11     3     4     E     6
END-OF-SELECTION            1    11     3     4     E     6
--------------------------------------------------------------
TOP-OF-PAGE                 1    11     3     4     E     6
END-OF-PAGE                 1    11     3     4     E     6
TOP-OF-PAGE DURING ...      1    10     3     4     E     6
--------------------------------------------------------------
LOAD-OF-PROGRAM             1    12     S     4     S     6
--------------------------------------------------------------
PBO module                 1     A     S     4     S     6
AT SELECTION-SCREEN OUTPUT  1     A     S     4     S     6
--------------------------------------------------------------

If a different message type is specified under a message type "A", "E", "I", "S", "W", and "X", the original message type is converted to this type and the message is sent in accordance with this type. The conversion of the message type "W" to "E" when handling reporting events and list events depends on the general behavior of messages in list processing.

A number under a message type means that processing is to take place as described below:

  • The message is displayed in a dialog box. After the dialog box is exited, the program is terminated and processing returns to the calling position of the first program of the current call sequence. All internal sessions of the call chain are deleted and a database rollback is performed.
  • PAI processing is interrupted and the system returns to the current screen without triggering the event PBO. The message is displayed in the status bar of the current window as standard. If the error message is sent in a dialog module that is called in the dynpro flow logic outside a process chain defined with CHAIN following a FIELD statement, the input field specified after FIELD is the only field that is ready for input. If the error message is sent in a dialog module that is called within a process chain defined with CHAIN, all fields specified after FIELD in the process chain are ready for input. After a user action, PAI processing is continued at the point described under Handling of Messages for the PAI Event.
  • The message is displayed in a dialog box. After the dialog box is exited, the program is resumed after the statement MESSAGE.
  • The program is continued after the statement MESSAGE. The message is displayed as standard in the screen of the next dynpro in the status bar of the current window.
  • PAI processing is terminated and returns to the current screen without triggering the event PBO. The message is displayed in the status bar of the current window as standard. The fields described under point 2 are ready for input. If the user confirms the current field contents with the Enter key without entering a new value, the program is resumed after the statement MESSAGE. If the user has entered one or more new values, processing is resumed after a user action as described under point 2. User actions associated with function codes that set the OK field also count as newly entered values here.
  • The program is terminated, a database rollback is executed, and the runtime error MESSAGE_TYPE_X is triggered. The short dump of the runtime error is displayed, which contains the ID, the short text, and the long text of the message.
  • The sending of error messages is not permitted during POH and POVprocessing and the handling of a function code of type "E". This raises a non-handleable exception.
  • Selection screen processing is interrupted and the system returns to the current selection screen with triggering the event AT SELECTION-SCREEN OUTPUT. The message is displayed in the status bar of the current window as standard. The input fields of the selection screen are ready for input that were specified by the additions of the statement AT SELECTION-SCREEN of the current event block. After a user action, selection screen processing is continued with the current selection screen event. Previous selection screen events are not triggered.
  • Selection screen processing is interrupted and the system returns to the current selection screen with triggering the event AT SELECTION-SCREEN OUTPUT. The message is displayed in the status bar of the current window as standard. The fields described under point 8 are ready for input. If the user confirms the current field contents with the Enter key without entering a new value, the program is resumed after the statement MESSAGE. If the user has entered one or more new values, selection screen processing is resumed after a user action as described under point 8.
  • The event block of the current list event is terminated and the list level at which the list event was triggered remains displayed. The message is displayed in the status bar of the current window as standard.
  • The program is terminated and an empty screen is displayed with an empty GUIstatus. The message is displayed in the status bar of the current window as standard. After a user action, processing returns to the calling position of the program.
  • The program is terminated with the runtime error SYSTEM_LOAD_OF_PROGRAM_FAILED.

    • When a message is displayed, the user can display the long text, if applicable, by a single click with the mouse on the Help button if the message is displayed in a dialog box, or by clicking in the status bar. If no long text is defined, it is generated using the content of the short text.

    Other versions: 7.31 | 7.40 | 7.54


    Notes

    • The function adjustment of local layout in the standard toolbar of the GUI status can be used to specify that error, warning, and status messages are displayed in a dialog box instead of in the status bar. The program flow does not continue as described above until the dialog box has been closed.

    • When displaying messages in a dialog box, 50 characters are available in a line. Messages with more than 50 characters are wrapped. One dialog box can display a maximum of six rows, which corresponds to 300 characters. This covers the maximum length of a short message of 269 characters, if this contains 73 characters and four placeholders that are each replaced by 50 characters. If displayed in the status bar, as many characters are displayed in the message as fit into the current width of the bar. If characters are cut off, this is indicated by three dots "..." at the end of the message. If you select it using the right mouse button, the message in the status bar is scrolled from right to left.

    • An icon specific to the message type is displayed in front of the message. If a message type is converted to another message type before sending, the icon of the new type is also displayed. The displayed icon can be overridden using the addition DISPLAY LIKE of the statement MESSAGE.

    • If the internal ID of an icon is displayed at the start of a line when shown in a dialog box, the icon is displayed as an icon. In all other positions, however, the icon ID is displayed as a literal.

    • Converting the output of a message to another type does not affect the setting of the system fields in the statement MESSAGE. The system field sy-msgty is always filled with the type specified in the statement MESSAGE

    • The behavior for the OK field described above in point 5 assumes that the OK field is defined in the screen. If function codes are only evaluated with system field sy-ucomm, the behavior is as for Enter.

    • The program DEMO_MESSAGES demonstrates the display of various message types from different processing blocks in dialog processing.