Finding duplicates in a column with multiple product #'s

Jamie Null
Jamie Null ✭✭✭
edited 12/09/19 in Formulas and Functions


Is there a way to find duplicates when a column may contain multiple product numbers which are comma separated?  I was able to get the below formula to flag red when only one event number is duplicated in a one to one ratio, and also have the formula disregard blanks.  Any ideas if there is a way to find duplicates when your data is comma separated?

=IF([Event #]1 = 0, 0, IF(COUNTIF([Event #]:[Event #], [Event #1) > 1, 1))

Example of the data



Event001, Event003


Event003, Event 001



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