When multiple barcodes are located on a pack, there’s always the potential for scanners to read the ‘wrong’ barcode or double scan the same product. This is a especially true during the transition perion where using both barcode types helps you transition to 2D without disrupting existing processes.
A well-placed QR code means everyone wins—retailers keep queues moving, and your products shine on the shelves.
Both barcodes are needed dduring transition
During the transition to 2D barcodes, brands will need to include both the traditional linear barcode and the new QR code (2D barcode) on each pack. This ensures compatibility with all retail POS systems, as not all checkouts may be able to scan QR codes just yet. Good news: your existing linear barcode doesn’t need to move unless there’s a genuine benefit for your overall pack design or scanning performance.
Find the ideal spot
- Preferred area: Place the QR code on the lower right quadrant of the back of your pack. This spot is easy for cashiers and self-scan systems to find.
Keep it clear: Make sure there’s a “quiet zone” (blank space) all around your QR code and keep it away from the edge of the pack, following the GS1 edge rule.
Keep barcodes together
If you’re using both a linear and a QR code, it’s important to keep them close together. The entire QR code (including its quiet zone) should be within a 50 mm radius from the centre of the linear barcode. This helps POS systems recognise both codes as belonging to the same product, and keeps scanning fast—up to the target of 40 to 70 items per minute.
Consider an additional QR code for the front of pack
Alongside your back-of-pack QR code for retail scanning, you may want to add another QR code on the front of your pack. This extra code can be used for engaging consumers, providing product information, promotions or supporting accessibility features.
Mind the human readable text
Any numbers or text printed with your barcode (Human Readable Interpretation or HRI) should also be placed carefully.
For details, see the HRI rules for retail consumer trade items in Section 4.15 of the GS1 General Specification and section 4 of the 2D barcodes at retail point of sale guidelines. This ensures the information is clear and easy to read for both people and scanners.
Always test your packaging design before mass production. What works in theory may need a tweak in practice.
Please contact your barcode solution provider for support or have a look at the GS1 UK partner finder. Alternatively, we offer a barcode review service.
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