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Pop up message box if duplicate exist

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HerryMarkowitz Pop up message box if... 12-23-2013, 08:29 AM

Leon V (AW) Re: Pop up message box if... 12-23-2013, 08:36 AM

jindon Re: Pop up message box if... 12-23-2013, 08:44 AM

HerryMarkowitz Re: Pop up message box if... 12-23-2013, 08:45 AM

HerryMarkowitz Re: Pop up message box if... 12-23-2013, 08:52 AM

HerryMarkowitz Re: Pop up message box if... 12-23-2013, 09:59 AM

Leon V (AW) Re: Pop up message box if... 12-23-2013, 10:16 AM

mikerickson Re: Pop up message box if... 12-23-2013, 10:44 AM

HerryMarkowitz Re: Pop up message box if... 12-23-2013, 10:59 AM

12-23-2013, 10:44 AM #8
mikerickson

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Re: Pop up message box if duplicate exist

You could put Excel's vValidation on all the cells of column A with the formula
=(COUNTIF(A:A, A1)=1)

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