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The following site allows you to verify if a barcode exists or not: https://www.gs1.org/services/verified-by-gs1
The following site allows you to verify if a barcode exists or not: https://www.gs1.org/services/verified-by-gs1
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== Barcodes conflicts ==
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Sometimes, scanning a barcode leads to a product not matching to the one we have in the hand. How is it possible?
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A. Sometimes a product has been previously entered with a wrong barcode? That's rare but possible. In this case you can try to move the wrong product to the right one: ask moderators if you don't have the right to do so.
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B. There is barcode conflict: two different products really share the same barcode. There are several reasons why this can happen:
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* some brands reuse old barcodes they have already used in the past
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* some brands create their own barcode, beginning by 2: then the chance to share a barcode with another brand is possible
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Some brands use short barcodes, EAN 8, with 8 numbers: the chance to encounter barcodes conflicts is higher.
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=== How to deal with barcode conflicts? ===
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As of today (2025-02), there are no solution to deal with these conflicts.
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That said, it's already possible to list these cases:
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* on this wiki page: [[Verification/Noteworthy Products#Products with same bar code]]
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* or using the [[Folksonomy/Property/barcode conflict|barcode_conflict]] property of Folksonomy Engine
== All things barcode ==
== All things barcode ==
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* [[Global countries taxonomy|Global countries taxonomy]] : Barcode prefixes for countries will be included
* [[Global countries taxonomy|Global countries taxonomy]] : Barcode prefixes for countries will be included
* [[Barcodes/Countries]]: Map from barcode initials to country or purpose
* [[Barcodes/Countries]]: Map from barcode initials to country or purpose
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* [[Verification/Noteworthy Products#Products with same bar code]]: List of instances where two or more products have been identified as having the same barcode.
== Barcode related pages on Open Food Facts ==
== Barcode related pages on Open Food Facts ==