GS1 basics

All guides in gs1 basics

• What Is a GTIN and Why Does It Matter?

  A GTIN is the number that identifies a product type across the supply chain. Learn its formats, how the check digit works and when you need a new one.

  Beginner·6 min read

• GTIN vs Barcode vs QR Code vs Serial Number

  A GTIN is a number, a barcode or QR code is how it is carried, and a serial number identifies one unit. A clear guide to how the four fit together.

  Beginner·5 min read

• GTIN, Batch, Serial, SSCC and GLN Explained

  A plain-English map of the main GS1 identifiers: what GTIN, batch, serial, SSCC and GLN each identify, and how Application Identifiers label them.

  Beginner·5 min read

• What Does a GS1 Company Prefix Actually Do?

  Your GS1 Company Prefix makes your GTINs unique and ties them to your company. Learn what it means, how its length sets capacity, and why resold numbers are risky.

  Beginner·5 min read

• Does GS1 Store All My Product Data?

  GS1 registries hold a small set of core facts about each GTIN. Serial numbers, batches, prices and supply-chain events stay with you and your partners.

  Beginner·5 min read

• How Product Information Gets from a Brand to a Retailer

  Retailers build their own item records from data brands send them. Learn how product master data, item files and data pools fit together, and who sets the price.

  Intermediate·6 min read