This area is regularly updated, and the questions below are organised in the order of popularity.
If your question isn't here, then contact us or place your question in the pop up that will appear on the screen.
Different barcode types
Learn about all the different barcodes and numbers we offer.
What is a GTIN? | What is an EAN? | What is a UPC? | What is a GLN? | What is a GS1 company prefix?
All our questions on pricing and membership costs.
How many barcodes do I need? | Do I get barcodes with my membership? | How do calculate the cost of my membership? | How does your pricing model work?
How to use your barcodes
Tips on how to get the best use of your barcodes.
I'm not based in the UK, can I still join GS1 UK? | Can I reuse barcode numbers allocated to me? | Can a product have more than one GTIN? | Why do I have to have a new Global Company Prefix (or GCP) when I get a new batch of numbers? | Can I buy GS1 numbers and sell them on to others? | How do I find out who owns a GTIN or barcode? | What’s the difference between a barcode from GS1 and others I see online?
Amazon and selling online
Answers for those selling on Amazon marketplace and online.
Why are my GTINs not being accepted by Amazon? | How long does it take for my GTINs to be recognised by Amazon? | Can I use GS1 UK barcodes on Amazon websites outside of the UK? | I bought GTINs somewhere else, can I update my listing with GS1 GTINs? | Someone else is selling a similar product to my own and using my GTIN | Do GTINs help with search engine traffic?
My GS1 account
See solutions related to your My GS1 login account.
Where can I find my GS1 certificate? | How do I reset my password? | How do I manage account users? | How do I make a payment? | When I join how quickly do I receive my barcodes? | I've just become a member, how do I start using my barcodes? | I've run out of GTINs, how do I purchase more? | What is a barcode image credit?
Here you'll find information about GS1 UK and GS1 standards.