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Excel/Attendance Tracking



I am trying to set up an attendance tracker using a barcode scanner in Excel 2010. What I am trying to do is, if I scan the barcode into column A, it will mark the date and time in column C (marked "Time 1") and then, if I scan the barcode again, it will search column A for any previous entries. If that second barcode is a duplicate, it will mark the date and time in column D (marked "Time 2") in the row of the original barcode and then delete the duplicate and be ready for the next barcode. I would like it to continue to place a new time stamp for each time that the same barcode is scanned (E,F,G...). I have tried to come up with a function that will do this, but I am thinking it will have to be a macro.

Any help would be greatly appreciated!


I don't have a barcode reader but since the readers can simulate keystroke entry, I could write something that reacts to an entry in a cell.  How about sending me  you sample sheet and you explanation of what you want and I will take a look.

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Tom Ogilvy

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Tom Ogilvy


Selected as an Excel MVP by Microsoft since 1999. Answering Excel questions in Allexperts since its inception in 2001. Able to answer questions on almost all aspects of Excel's internal capabilities. If seeking a VBA solution, please specify that in your question itself so I give you the answer you want. [Excel has weak protection - if you are distributing an application, I don't answer questions on how to protect your project from your users.]


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Master of Science (MS) degree Operations Research (ORSA)

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Microsoft MVP in Excel.

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