What's New In Microsoft Dynamics NAV Part IV
With Microsoft Dynamics NAV a new property called ShowMandatory has been introduced on page fields. The ShowMandatory property is set on page fields and marks the field with a red asterisk on the UI.
NOTE: The ShowMandatory property can be used to mark all page fields, but does not enforce any validation of the field. This means that the user will be able to close a page without entering data.