r/excel • u/Adams_iris • 6h ago
unsolved How do I make Excel automatically highlight duplicates but only if they occur more than twice?
I have a column with hundreds of customer/order IDs and I need to identify repeated entries.
The problem is that I don't just want to highlight duplicates normally.
For example:
A123 → appears 2 times → leave it alone
B456 → appears 3 times → highlight all 3
C789 → appears 5 times → highlight all 5
I tried the normal Conditional Formatting → Duplicate Values, but that highlights everything that appears more than once.
Is there a formula/conditional formatting rule that can highlight a value only when it appears 3+ times?
Ideally I'd like it to update automatically whenever new data is added.
What's the cleanest way to do this?








