Help with Formula to Identify Partial Duplicates

Leslie Ambs

Hello!

I am trying to compile a formula that will look for partial (left 6 characters) matches in a column and indicate "Match" in column named "Duplicate". I am currently using the below formula however it returns "match" when there is no match.

=IF(LEFT([LAST CUSIP]@row, 6) = LEFT([LAST CUSIP]@row + 1, 6), "match", "")

the attached image shows the 2nd and 3rd row qualify as a match, but "match" is reflected for other rows also. Ultimately what I am trying to do is indicate the rows that share the first 6 characters but the last 3 characters at "XXX" so they can be filtered out.

MartinJL

I missed that you're only looking to match the first six characters.

Nic Larsen

I was able to do this with an added helper column I named LEFT to 1st pull the left 6 characters out.

=LEFT([LAST CUSIP]@row, 6)

Then I use this formula to find matches

=IF(COUNTIFS(LEFT:LEFT, FIND(LEFT@row, @cell) >= 1) > 1, "Match")

I'm pretty sure you can combine them to avoid the helper column but I'm struggling to get it to work at moment.

Nic Larsen

@Leslie Ambs

Okay, try this. No need for helper.

=IF(COUNTIFS([LAST CUSIP]:[LAST CUSIP], FIND(LEFT([LAST CUSIP]@row, 6), @cell) > 0) > 1, "Match")