Using your Barcodes

Online Marketplaces and Amazon

• Do I need a GS1 GTIN to sell on Amazon?
• I get an “8541 – Product Already Exists” error or an “5461 – ASIN Creation Violation” error when listing on Amazon. What should I do?
• Amazon can't verify who owns my barcodes. What could be the problem?
• When listing on Amazon, I get an error “The value specified is lesser than the minimum allowed for the field.” What should I do?
• When listing on Amazon, I get an “8572 – EAN/UPC do not match the product you’re trying to list” error. What should I do?
• When listing on Amazon, I get a “Potential match” error. What should I do?
• Can I use GS1 Ireland GTINs on all Amazon websites?
• Amazon asked me to send a GS1 Membership Certificate before I can list my products. How can I get one?
• Amazon already allocates its ASIN number to products. Why do I also need a GS1 GTIN?
• I want to change the GTIN on my Amazon listing. What should I do?
• I started selling online and now I plan to sell in physical stores. Can I use the same GTIN?
• I started selling in physical stores and now I plan to sell online. Can I use the same barcodes?