20.1 Displaying Success and Error Messages

Show users success and error messages, and customize errors with an Error Handling Function.

Use success and error messages to show users when operations have succeeded or failed. To tailor how end users see unexpected errors or ones raised by constraint violations or trigger exceptions, use a custom Error Handling Function.

• Configuring Success and Error Messages
  Configure page process messages with inline text, substitution syntax, or translatable text messages.
• Using Validations for Multiple Errors
  All validation errors show at once so users can review and fix them in one step.
• Auto-Dismissing Success Messages
  Configure success messages to dismiss automatically, with care for users who may need more time.
• Showing Messages with Dynamic Actions
  Show success or error messages from dynamic actions, including eager validation messages returned by server-side checks.
• Showing Messages Programmatically
  Show and clear success or error messages from PL/SQL or JavaScript code.
• Customizing Error Message Display
  Use an Error Handling Function to customize how users see errors raised from database constraints, trigger exceptions, or the APEX engine.