Excel Conditional Format

Question

I have the following spreadsheet:

...

I need a conditional formatting formula that colors the dates in the grid red if the are on the same day, same time, and are of the same event type (in column A as white text). I've tried a bunch of different countifs . The current formula is =AND(COUNTIFS($A$5:$A$20,$A5,I$5:I$20,$I5)>1,I5<>"") . It doesn't discriminate by type, or day really, like I want. Any ideas?

Answer 1

There's one $ sign too many in your formula. Change the $I5 to I5.

Before

=AND(COUNTIFS($A$5:$A$20,$A5,I$5:I$20,$I5)>1,I5<>"")

After

=AND(COUNTIFS($A$5:$A$20,$A5,I$5:I$20,I5)>1,I5<>"")

Be aware, though, that with that formula alone, you won't be able to figure out WHICH event type has duplicates, especially if the duplicates are from different event types, like this: