Manual entry: If you entered the data manually, rather than scanning the pack, check that the data entered matches what is printed on the pack. If not, then type it again correctly. If the pack is successfully verified and decommissioned after repeating the manual entry attempt, the investigation is complete.

2D barcode: Check if there is a linear barcode close to the 2D barcode on pack. If you suspect your scanner might have scanned the two barcodes at the same time, try covering the linear barcode with your thumb and scan the 2D barcode again.

Has a root cause been found at this stage?