GS1 Assistant (UPC EAN GTIN)
Manage and assign UPC/EAN Codes from a GS1 Company prefix
Developed by Left Foot Software
App Overview
The GS1 Assistant app simplifies assigning UPC, EAN, or GTIN barcodes to your Shopify product variants using your GS1 Company Prefix. It ensures unique barcode assignments, tracks remaining codes, and provides insights into how major retailers like Amazon, Walmart, and Google Shopping view your Verified by GS1 data. This tool streamlines synchronization with GS1, helping you maintain accurate and organized barcode management for your products.
Screenshots

Generate valid GS1 barcodes (UPC EAN GTIN). Sell on Amazon, Google, Walmart without rejection
Getting rejected for missing or invalid GTINs? GS1 Assistant lets you buy and assign valid UPC codes, EAN codes, GTINs from official GS1 organizations, directly inside Shopify. Uses your GS1 company prefix. No resold or fake barcodes. Auto-assign UPC barcodes to new and missing products. Manage all barcodes for your products in one place. Valid GTINs enable better rankings, richer listings on Google Shopping. And no rejections on Amazon, Walmart & other marketplaces. Fully compliant from day 1.
Key Features
- Buy official GTIN, UPC & EAN codes from GS1 partners. No fake or resold barcodes
- Buy & assign barcodes from your GS1 prefix inside Shopify. No multiple portals.
- Automatically spot missing or duplicate barcodes & assign GTINs to new products
- Sync product data with GS1 registries or export ready-to-upload spreadsheets
- See how your products appear on Amazon, Google & Walmart before you go live.
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GS1 Assistant (UPC EAN GTIN) FAQs
Yes! Try GS1 Assistant (UPC EAN GTIN) free plan. For more details about GS1 Assistant (UPC EAN GTIN) pricing, check here.
