Question about Barcodes and Denying Duplicates



Is there a way to deny a duplicate scanned barcode into Smartsheet (throw up an error) if it has already been used on the Smartsheet to let the person know to use a different bar code? We are using this for specimen gathering and are assigning barcodes to each patient. We want each barcode to be unique and we want to have duplicates identified before they are put on the Smartsheet so we can use a different, unique barcode.



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