How supermarkets make sure all barcodes are unique?

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Since the barcodes are coming ftom the manufacturer how you can make sure they are all unique? With you scan a product you need to make sure it’s unique

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12 Answers

Anonymous 0 Comments

Actually the answer is very simple. There is an actual central registry for bar codes. If it was left up to the individual store. The manufacturer or individual store would have make sure they put their personalized code on every package. Similar set up for qr codes.

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