You use this procedure to add new messages to an existing message class.
A valid message class must exist in the ABAP program.
The system displays a list of all messages belonging to the message class.
The next free line is ready for input.
If you choose with the quick info text Display <-> Change, all lines are ready for input. Thus the system locks all messages of the message class and other users cannot change or add a message in this message class.
For more information, see Creating message long texts .
Every message has a message type. The message type determines in the MESSAGE statement the representation of the output and the remaining program flow. The following message types are available:
information message
status message
error message
warning
termination message
exit message.
For more information about these types, see Message Processing .