Barcode Guides & Resources for Sellers

Small Business
Where to Buy Barcodes for Your Shopify Store (Step-by-Step) - gs1upc.shop
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Where to Buy Barcodes for Your Shopify Store (Step-by-Step)

Shopify's own product editor has a barcode field, but Shopify doesn't sell barcodes — it just stores whatever number you enter. If you're staring at that empty field wondering where the number is supposed to come from, here's the straight answer.

Jul 23, 202628 views
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Retail Sellers
Do You Need a UPC Code to Sell on eBay? ('Does Not Apply' Explained) - gs1upc.shop
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Do You Need a UPC Code to Sell on eBay? ('Does Not Apply' Explained)

If you've listed on eBay and hit a UPC field you don't know how to fill in, you're not alone — this is one of the most common points of confusion in eBay's own seller community. Here's when you actually need one, and when "Does Not Apply" is genuinely fine.

Jul 23, 202645 views
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Amazon Sellers
Amazon Barcode Requirements 2026: The Complete Guide - gs1upc.shop
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Amazon Barcode Requirements 2026: The Complete Guide

Amazon's barcode rules changed again in 2026, and a lot of sellers are shipping inventory with the wrong setup without realizing it until a shipment gets held at receiving. Here's what's actually required right now.

Jul 22, 202635 views
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Amazon Sellers
GTIN Exemption on Amazon: How to Apply (and When You Shouldn't) - gs1upc.shop
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GTIN Exemption on Amazon: How to Apply (and When You Shouldn't)

A GTIN exemption lets certain Amazon sellers create listings without a UPC or EAN. It's a legitimate option for a specific group of sellers — but for most people searching this term, buying a barcode is actually faster, cheaper, and less likely to get a listing flagged.

Jul 22, 202628 views
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Amazon Sellers
FNSKU vs UPC vs GTIN: What Amazon Sellers Actually Need in 2026 - gs1upc.shop
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FNSKU vs UPC vs GTIN: What Amazon Sellers Actually Need in 2026

If you've searched "FNSKU vs UPC" and come away more confused than when you started, you're not alone — it's one of the most common questions new Amazon sellers ask, and the confusion got worse after Amazon's March 2026 barcode policy update. Here's the short version, then the full breakdown.

Jul 22, 202625 views
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Barcode Basics
Barcode Registration: How to Register Your Product Barcode - gs1upc.shop
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Barcode Registration: How to Register Your Product Barcode

Barcode registration is a term that confuses many new product sellers. This article clarifies what it means to register a barcode and what you actually need to do.

Jul 08, 202634 views
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Pricing
Bulk Barcodes for Business: How to Buy UPC and EAN Codes in Volume - gs1upc.shop
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Bulk Barcodes for Business: How to Buy UPC and EAN Codes in Volume

If your business sells multiple products or is scaling its product catalog, buying barcodes in bulk is the most cost-effective approach. This guide explains how bulk barcode purchasing works.

Jul 06, 202625 views
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Retail Sellers
How to Start Selling on eBay: Barcode Requirements Explained - gs1upc.shop
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How to Start Selling on eBay: Barcode Requirements Explained

eBay is one of the largest global marketplaces. Whether you're a casual seller or building a serious eBay business, understanding barcode requirements will save you time and help your listings rank better.

Jul 03, 202632 views
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Small Business
Barcode for Small Business: Everything You Need to Know - gs1upc.shop
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Barcode for Small Business: Everything You Need to Know

If you run a small business and want to sell your products professionally, a barcode is one of the first things you'll need. This beginner-friendly guide covers everything a small business owner needs to know.

Jul 01, 202627 views
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Retail Sellers
How to Sell Products on Walmart: The Barcode Requirements Guide - gs1upc.shop
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How to Sell Products on Walmart: The Barcode Requirements Guide

Walmart is one of the world's largest retailers, and getting your products onto Walmart's shelves or Walmart.com requires proper barcode compliance. Here's exactly what you need.

Jun 29, 202625 views
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Barcode Basics
Barcode Certificate: What It Is and Why Your Business Needs One - gs1upc.shop
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Barcode Certificate: What It Is and Why Your Business Needs One

When you buy a barcode, you should also receive a barcode certificate. But what is it exactly, and why does it matter for your business? This guide explains everything.

Jun 26, 202626 views
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Barcode Basics
EAN-13 Barcode: Complete Guide for New Product Sellers - gs1upc.shop
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EAN-13 Barcode: Complete Guide for New Product Sellers

The EAN-13 barcode is the world's most widely used product identification standard. If you're launching a product in any market outside the US — or even globally including the US — EAN-13 is the barcode you need.

Jun 24, 202623 views
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Barcode Guides & Resources

Expert guides on UPC barcodes, EAN codes, GS1 standards, Amazon seller requirements, and everything you need to know to get your products listed and selling globally.