Count the uniquness of a value

Question

I have this sheet:

As you can see I am determining the uniqueness of a value by this formula:

=IF(SUMPRODUCT(($A:$A=A2)*($B:$B=B2)*($C:$C=C2))>1;"NOT UNIQUE";"UNIQUE")

This formula basically checks if the the identifier the value and the date are all three different(unique). If two are the same then its still unique.

However, what I would like to achive is that I want to count its uniqueness, so that I I get:

As you can see if the identifier the value and the date are coming up more than once than a counter counts +1 if not then it starts at 1 again.

Is this possible with my previous formula?

I appreciate your answer!

Answer 1

Use this one in E2 and drag it down:

=COUNTIFS($A$2:A2,A2,$B$2:B2,B2,$C$2:C2,C2)