Prevent Duplication

Agility

New Member
Joined
Dec 5, 2013
Messages
9
How do I create a formula that would show me if a number is used more than once in a column? I am not trying to create unique numbers I want any duplication of numbers to stand out.
 

philwojo

Well-known Member
Joined
May 10, 2013
Messages
533
you could try something like this:

Code:
=COUNTIF(H1:H14,H1)
that will look for what ever the value is in H1 in the range of H1:h14 and tell you how many time it occurs. If that count is greater than 1 you then would know there is a duplicate.

Is that what you are looking for?

You would update the H1 and H1:H14 references to fit your needs and range.
 

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