Upon attempting to enter my first Workshop Headers, I was prompted to enter data for all halls
(C4 as well). I entered Workshop titles for all but C4 (leaving that blank). I then got this error:

Error 3315 - Field 'ColumnHeaderTable.Title' cannot be a zero-length string. 
at dao.Recordset.Update(Int32 UpdateType, Boolean Force)
 
at CallerScheduler.frmWorkshopTitlesEdit.SaveDataToDatabase()

After I hit OK, it resumed my place in the Times table as though nothing had happened. It appears
to have taken the workshop titles I gave it, but I canât be certain of that yet.

VDC -- modify database should allow EMPTY text strings for this field.