i'm trying to work on a vacation scheduler for employees to input vacation dates. I have a table for dates and a table for holidays and am trying to use the module from https://msdn.microsoft.com/en-us/lib...ffice.12).aspx. I've copied the code from the calculating working days and am getting an error undefined function 'workdays' in expression. i'm sorry but i'm just starting with modules and i'm lost. any help would be appreciated.