In the querysave event of the HD Anfrage (bugreport ) form is the following message box
Msgbox "Es wurden nicht alle erforderlichen Felder ausgefüllt:" & Chr$(10) & l_Join(ErrorArray, Chr$(10)),16,"Unvollständige Daten"
Obviously if you're wanting a language independent application have error messages in German is probably not a good thing (for those of us that can't speak German).