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How do I prevent entering duplicate numbers in an excel worksheet
I have a lot of bill laden numbers I need to keep track of in an excel
worksheet for accounts payable and I want to prevent entering duplicate numbers. Is there a way I can have excel tell me when I have keyed a duplicate number? Thanks for any help. |
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#2
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How do I prevent entering duplicate numbers in an excel worksheet
You can use validation to do this... Select Data - Validation - Custom and
insert the following formula (Select all of column A with Cell A1 as the active cell) =COUNTIF(A:A, A1)=1 -- HTH... Jim Thomlinson "Bran5956" wrote: I have a lot of bill laden numbers I need to keep track of in an excel worksheet for accounts payable and I want to prevent entering duplicate numbers. Is there a way I can have excel tell me when I have keyed a duplicate number? Thanks for any help. |
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