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How Should a Packaging Line Prepare for GS1 2D Barcodes?

Coding and inspection readiness

Direct answer: A packaging line should prepare for GS1 2D barcodes by defining the approved data carrier and data syntax, deciding whether the code is pre-printed or generated inline, confirming pack position and print contrast, connecting the correct product data, verifying the code against the intended standard, and defining what the line does when a code is missing or fails inspection. The final arrangement must be proved with production packaging and real data.

Project decisionEvidence to definePackaging-line implication
Data and syntaxApproved GTIN and any batch, expiry, serial or web-linked data; customer and GS1 rules.Determines code content, data source, recipe control and validation.
Print methodPre-printed artwork, inline direct marking, thermal transfer, inkjet or print-and-apply label.Determines printer, consumable, handling and inspection position.
Pack positionAvailable area, curvature, seams, folds, gloss, transparency and presentation to the reader.Affects code size, contrast, distortion, print-to-pack control and camera view.
Inspection levelPresence, decode, data match, grading or formal verification.Defines camera or verifier, reject response, records and acceptance method.
Line controlsRecipe source, data-change authority, blocked/starved states and reject confirmation.Prevents mixed data and defines safe recovery after stops or faults.

What is the GS1 2D barcode ambition for 2027?

GS1 describes an industry ambition for retail point-of-sale systems globally to be capable of reading and processing GS1-compliant 2D barcodes by the end of 2027, while existing linear barcodes remain part of the transition. It is not a blanket instruction that every producer must remove its current barcode immediately.

The packaging project should start with the brand owner, retailer and GS1 requirements that apply to the actual product. Decide which data must be encoded, which data remains static, which values change by batch or pack, and whether a linear code must remain during migration.

Which 2D barcode should be printed on the pack?

The correct symbol depends on the retail, sector and data-use requirement. Common GS1 routes include QR Codes carrying GS1 Digital Link URI syntax and GS1 DataMatrix in applications that permit it. The code type, size, placement, data content and human-readable information should be confirmed through the relevant GS1 application guidance and customer specification.

Do not choose a symbol solely because a printer can produce it. Confirm that the intended scanners, software and downstream partners can decode and use the data. Where more than one barcode appears on a pack, the scanning behaviour must also be considered.

What changes are needed on the packaging line?

The line may need a suitable printer or print-and-apply system, a reliable source of product and batch data, code-position control, a verifier or vision system, reject handling, records and clear line-state logic. The exact scope depends on whether the code is pre-printed, printed online, applied as a label or produced elsewhere.

Define who creates the data, how a recipe selects the right item, what happens after a data change, how printers are enabled, where inspection occurs, and whether the line can prevent mixed or unverified packs from continuing. If code grading is required, agree the method, sample state and acceptance threshold with the responsible customer or standards owner.

Can an existing printer be used for GS1 2D barcodes?

An existing printer may be usable only if it can create the required symbol and module quality on the real substrate at the intended line condition. A desktop demonstration is not enough: the test should use production film, labels or containers, normal line speed, actual data length and the expected print-to-pack distance.

Check resolution, ink or ribbon compatibility, drying or curing, print contrast, vibration, pack movement, surface curvature, coding window and maintenance condition. Confirm the result after normal starts, stops and consumable changes.

Is a readable scan the same as barcode verification?

No. A successful scan only shows that a particular reader decoded the symbol under that test condition. Verification assesses defined symbol-quality characteristics against an applicable standard and test method. The project should state whether simple presence checking, decoding, data validation or formal verification is required.

Inspection also needs a response: alarm, stop, reject, rework or record. Agree how false rejects, unreadable packs, duplicate codes and incorrect data are handled, and retain representative failed samples for the acceptance review.

What should be included in the packaging trial and FAT?

The trial and factory acceptance test should use the approved packaging material, representative data strings, every relevant pack format and the intended production print method. Test code creation, position, readability or verification, recipe change, data change, missing-code detection, reject handling, recovery after stops and the records required by the user.

Include the most difficult combinations, such as long data, small print areas, curved packs, reflective material, low contrast or variable line speed. The agreed test should distinguish printer capability, packaging-material capability and data-system responsibility.

Information to provide for a 2D-code line review

  • Approved code type and governing customer or GS1 requirement
  • Static and variable data fields, including the longest expected data string
  • Production artwork, labels, film or container samples
  • Required print position and available coding window
  • Current printer, software and line-control interfaces
  • Inspection, verification, reject and record requirements
  • All pack formats, line speeds and difficult operating conditions
  • Evidence expected at sample trial, FAT and site acceptance

Barcode ownership and compliance remain with the responsible brand owner or packer. Lancing can review machinery integration against the supplied specification and production samples.

Authoritative standards context

See the official GS1 2D readiness guidance, the GS1 retail point-of-sale implementation guideline and the GS1 Digital Link standard overview. The applicable customer, sector and verification requirements must be confirmed for the real pack.

Related guidance and machinery

Pallet labelling

Review logistics-label application and data-transfer requirements.

Discuss the application with Lancing.
Send the code requirement, data fields, packaging samples, line speed, printer details and inspection method for a practical integration review.

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