I am using Sumproduct with three variables (Person, Product and Month).

I am using data validation lists for the end user to select the person,
product and month. I would like to be able to add a "Total" to the person
list so that when the end user chooses "Total" and a product and month that
the Sumproduct would only use the two other criteria (Product and Month) and
be able to see the totals of those criteria for all Persons.

I know I could nest IF THEN statements with the Sumproduct, but is there a
better way???

Appreciate the help!