Hi,
Just wondering if its possible to use the NETWORKDAYS formula using two different sets of holidays, based on whether testing site is Munich or Sydney. I have the holiday dates listed in separate columns e.g
=IF([Testing Site]10="Munich", NETWORKDAYS(start_date,end_date,munichHol1:munichHol13), IF([Testing Site]10="Sydney", NETWORKDAYS(start_date,end_date,sydneyHol1:sydneyHol13))
When I try this formula I keep getting an error 
Thanks