If in a series of dates and corresponding cash flows (say: 12/31/2018 - 12/31/2033) you want to use sumproduct to return the cash flow for a date not in the series (say: 12/31/2016), can sumproduct return the cash flow ties to 12/31/2018 (oldest and therefore closest date)?
Say your dates are listed in range A2:A17
in cell B2 =DATE(2016,12,31)
In order to get the closest date ...you could have in cell C2 the following Array Formula
Hope this will help
You are welcome ... :smile: