Values Unique To Another Column

[ExcelAmateur69]

Hi all,

I'm hoping for some assistance please if possible.

It's kind of hard to explain but I've attached a sample of what i'm looking for.

I have a list of internal and customer ID's. The customer ID's can only appear once and against a unique internal ID and cannot be duplicated.

Thanks in advance

[AliGW]

Welcome to the forum.

There is no Excel 2020 to my knowledge - so do you have MS365 or Office 2021? Or something else? This will affect solutions offered.

[ExcelAmateur69]

Hi,

Apologies, all it says is Excel 365, i believe it's the latest one?

[AliGW]

Yes, thanks - please update your profile accordingly.

See if this works for you:

=IF(AND(COUNTIFS($A$2:$A$10,A2,$B$2:$B$10,B2)=1,COUNTIF(B$2:B2,B2)=1),1,0)

[ExcelAmateur69]

Done. Thanks again

[AliGW]

OK - see post #4 for solution (I hope).

[ExcelAmateur69]

Yes!! that's fab. thanks so much

[AliGW]

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