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How do I prevent duplication information, such as SSNs in cells.
Is there a way to prevent duplication of numbers in Excel cells such as
Social Security Numbers. Can an alert be set to get notification when a duplication is entered in another cell in the same colomn occurs? |
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#2
Posted to microsoft.public.excel.worksheet.functions
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How do I prevent duplication information, such as SSNs in cells.
Select A1:A10, the use Data / Validation... on the "Settings" tab,
Select Custom under "Allow" and use the formula =COUNTIF($A$1:$A$10,A1)=1 -- If this reply was helpful, please indicate that your question has been answered to help others find anwsers to similar questions. www.silverbirddesigns.com Fighting Texas Aggie Class of 2009 "B. J." wrote: Is there a way to prevent duplication of numbers in Excel cells such as Social Security Numbers. Can an alert be set to get notification when a duplication is entered in another cell in the same colomn occurs? |
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