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GS1 Digital Link

Free your labels: 5 steps to switch from barcode to enhanced QR code without errors

1 February 2026 - The QRanberi Team

The transition from the EAN-13 barcode to the enhanced GS1 QR code (GS1 Digital Link) is not just a symbol change. It is a major standards evolution affecting product data, checkout systems, regulatory compliance, and industrial processes.

Free your labels: 5 steps to switch from barcode to enhanced QR code without errors

This guide is designed to provide a technical, standards-based, and actionable roadmap, aligned with GS1 standards and ISO norms.

Why the GS1 QR code changes the game, and why EAN-13 is reaching its limits

The EAN-13 barcode was designed for one single function:

Identify a product at checkout through a GTIN.

While it remains reliable, it is now structurally limited:

  • Fixed data
  • No extensibility
  • No update capability
  • No interaction with the consumer

The GS1 QR code (Digital Link) keeps that identification function while adding a smart data layer.

One single symbol can now enable:

  • Checkout scanning (B2B)
  • Access to product data via smartphone (B2C)
  • The integration of traceability and safety information

This is not a marketing use case. It is a new industrial standard, built to last.

Step 1 - Audit and secure your master data

Every successful transition starts with an invisible but fundamental prerequisite: master data quality.

The GTIN remains the central pivot of the GS1 system. A QR code, even perfectly printed, will never compensate for:

  • an incorrect GTIN,
  • a duplicate,
  • or data not registered in the GS1 ecosystem.

GS1 best practice

GTINs and their attributes must be:

  • properly structured,
  • kept up to date,
  • registered in the GS1 Registry Platform.

Industrial benefits

  • Securing checkout flows
  • International interoperability
  • Reduced logistics and retailer disputes

Step 2 - Define a compliant GS1 Digital Link URL architecture

GS1 Digital Link is not a free-form URL. It is a standardized data structure, designed to be interpreted by both industrial scanners and smartphones.

Canonical structure

https://[brand_domain]/01/[GTIN]

Key Application Identifiers (AI)

  • 01: GTIN (mandatory)
  • 10: Batch number
  • 17: Expiration date (YYMMDD)
  • 21: Serial number

The central role of the resolver

The GS1 resolver allows differentiated reading:

  • Checkout scanners extract only the identification data
  • Smartphones access the adapted digital experience

Critical point of attention

The domain name must be:

  • short,
  • durable,
  • controlled by the brand.

A URL that is too long increases QR code density and reduces checkout readability.

Industrial benefits

  • A more compact and robust QR code
  • Reliable reading on low-resolution scanners
  • Durability throughout the product lifecycle

Step 3 - Design and print: comply with ISO standards

A GS1 QR code is a standardized industrial object, subject to strict physical constraints.

Essential requirements

  • Recommended minimum size: 21.21 x 21.21 mm
  • Quality standard: ISO/IEC 15415
  • Quiet Zones are mandatory
  • High contrast between modules and background

Watch out for common mistakes

Red is perceived as black by laser checkout scanners. A red QR code can become totally unreadable at the point of sale.

Industrial benefits

  • Maximum readability rate
  • Zero friction at checkout
  • Reduced waste and reprint costs

Step 4 - Qualicode validation: secure before industrialization

Before any large-scale production, validation is essential. The Qualicode service from GS1 France analyzes:

  • the real code size,
  • contrast,
  • ISO grade,
  • multi-scanner readability.

An official compliance report is delivered.

Industrial benefits

  • Standards and legal security
  • Reduced retailer risk
  • Validation before heavy industrial investment

Step 5 - Orchestration and dynamic data

The power of the enhanced QR code lies in the separation between the printed symbol and the displayed data. Thanks to GS1 Digital Link:

  • the printed QR code does not change,
  • the content can evolve in real time.

Industrial use cases

  • Regulatory updates (AGEC, Nutri-Score)
  • Product recall management
  • Traceability information
  • Content adaptation by country or channel

Industrial benefits

  • No relabeling required
  • Maximum responsiveness in case of incident
  • Reduced non-quality costs

Security and serialization: a strategic lever

The GS1 QR code makes it possible to integrate critical safety data.

Example:

  • AI 17 (expiration date) can automatically block an expired product at checkout.

Measurable benefits

  • Reduced health risks
  • Lower exposure to fines and recalls
  • Better control of the downstream chain

Conclusion: a standards transition, not a gadget

Moving from EAN-13 to the enhanced GS1 QR code means:

  • securing product identification,
  • enriching traceability,
  • preparing the industrial ecosystem for the 2027 deadline.

The players who approach this transition as a structuring, standardized, and anticipated project gain a decisive lead over those who simply endure it.