How does one suppress or customize error messages in Forms?
One can either set the message level using the system variable SYSTEM.MESSAGE_LEVEL or trap errors using the ON-ERROR or ON-MESSAGE triggers. MESSAGE_LEVEL: Set to 0, 5, 10, 15, 20, 25 to suppress all messages with severity below this level. The default level is 0. Messages with a level higher than 25 cannot be suppressed. See the “Forms Error Messages Manual” for more details about the various MESSAGE_LEVEL’s: • 0 – Default value. All types of messages from the other levels of severity. • 5 – Reaffirms an obvious condition. • 10 – Indicates that the operator has made a procedural mistake. • 15 – Declares that the operator is attempting to perform a function for which the form is not designed. • 20 – Indicates a condition where the operator cannot continue an intended action due to a problem with a trigger or another outstanding condition. • 25 – Indicates a condition that could result in the form performing incorrectly. • >25 – Indicates a message severity level that you cannot suppre
