Validation Message
The Validation Message field is used to specify the message that is displayed to users when inputting invalid information into a field.
ForStandard Fields the Validation Message is displayed when the user has not completed a Mandatory field.
For Custom Fields the Validation Message is displayed when the entry in the field does not comply with the statements entered in the JavaScript Validation section for the Custom Field.
The Validation Message can be up to 255 characters in length.