I'm looking for a "lookup" function that will display the contents of col C
if the date entered is between the start date and the end date. I'm not
following how the sumproduct will get me to the correct results. Thanks for
your help!

"bj" wrote:

One way to do it would be to use sumproduct
=sumproduct(--(A1:A100<=datevalue(D1)),--(B1:B100=Datevalue(D1)),C1:C100)

"Corissa" wrote:

I have the following data:
Col A = Start Date
Col B = End Date
Col C = Week Number

Is there a way to do a lookup function to display the Week Number if a user
enters a date that is between Col A and Col B?