Assign and manage GTIN/ UPC/ EAN directly in your Shopify store.

Brian McKinley • Peerlist

<a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://www.leftfootsoftware.com/products/gs1-assistant/">GS1 Assistant</a> helps Shopify merchants assign, validate, and manage GS1 barcodes directly inside their store. Replace manual spreadsheets with a faster workflow, prevent duplicate GTINs, and keep your product data ready for marketplaces like Amazon, Google Shopping, eBay, and Etsy.Why merchants use GS1 AssistantManaging thousands of barcodes manually is time-consuming and error-prone. GS1 Assistant centralizes the entire process inside Shopify, making barcode management accurate, scalable, and easier to maintain.Key features- Assign GTINs without duplicates using your existing GS1 Company Prefix.- Validate barcode formatting to reduce data errors before publishing.- Export GS1-ready files in your local GS1 organization's import format.- Automatic GS1 synchronization for supported GS1 organizations with API access.- Responsive customer support that continuously improves the app based on merchant feedback.How it works1. Connect your GS1 Company Prefix.2. Assign GTIN, UPC, or EAN values to Shopify products.3. Validate and export product data, or sync automatically where GS1 APIs are available.4. Once products appear in Verified by GS1, publish confidently across major marketplaces.Benefits- Save hours of manual work by eliminating spreadsheet-based barcode management.- Reduce listing errors with correctly formatted, validated, and unique barcode assignments.- Sell across more channels with product data that meets marketplace barcode requirements.- Whether you manage 100 products or 100,000, GS1 Assistant helps keep your Shopify catalog accurate, compliant, and ready to scale.