Hi there. Based on your formula, it seems like every record with a number bigger than 1 is a duplicate while the rest is not. So maybe just like this?
IF(Number > 1, "DUPLICATE", "NOT DUPLICATE")
In Airtable, you’re not checking for entire columns, but for every record (similar to row in Excel). So with the formula above, you’re basically saying: If the Number field in this record (row) is above 1, it’s a duplicate, otherwise it’s not.
Let me know if this was what you were looking for :slightly_smiling_face: