The default value for a field or form field. The value that a required field or form field will assume if no value is specified by the end-user.
A 256-character string, containing any character or numeric Valid Values
Default should contain a value expression that will be evaluated and assigned to the field during an ADD command. If no expression is specified, and no value is assigned during an ADD, the field’s value is set to $Null.
A value expression that defines the virtual field’s contents must be specified.
If no expression is specified, the null string (“”) is used.