A barcode can look perfectly normal on screen and still create problems when it reaches a scanner. Barcode verification is used to evaluate whether a symbol has been produced in a way that supports reliable scanning and conforms to the applicable barcode requirements.
For brands preparing packaging, coupons or other promotional materials, verification can help identify issues before a large print run or program launch.
What Is Barcode Verification?
Barcode verification is a structured evaluation of a printed barcode. Unlike a basic scan test, verification examines measurable characteristics of the symbol and produces information about its quality and conformance.
The exact requirements depend on the barcode type and application, which is why the symbol should be created and reviewed for its intended use rather than treated as a generic graphic.
Verification Is Different From Simply Scanning a Barcode
A successful scan with one device can be useful, but it does not provide the same information as formal verification. A scanner primarily answers whether that device can read the symbol under those conditions. Verification evaluates characteristics that can affect consistent performance across scanning environments.
What Can Affect Barcode Quality?
Barcode performance can be influenced by symbol size, bar and space dimensions, contrast, quiet zones, print quality, distortion and the way artwork is placed or reproduced. Changes made during design, resizing or production can affect a symbol that originally appeared correct.
Why Quiet Zones Matter
Barcodes require clear space around the symbol so scanners can distinguish the barcode from surrounding artwork. Text, borders, graphics or other design elements placed too close to the symbol can interfere with that space.
Why Size and Artwork Handling Matter
Barcode artwork should not be stretched, compressed or casually resized to fit a layout. Altering proportions can change the relationship between bars and spaces. Brands should work from production-ready artwork created for the intended application and confirm that later design changes have not compromised it.
When Should a Barcode Be Verified?
Verification is most useful before final production, while there is still time to correct artwork or printing issues. Depending on the project, brands may also evaluate production samples to confirm that the printed result reflects the approved artwork.
What Happens When a Barcode Has a Problem?
The next step is to identify the source of the issue. The correction may involve artwork, dimensions, placement, contrast or the printing process. The important point is to address the cause before producing a larger quantity of materials.
Barcode Verification as Part of Pre-Launch Quality Control
Barcode review should fit into the broader approval process for packaging and promotional materials. Confirm the correct data, barcode type, artwork, placement and production requirements before launch, then retain approved files and documentation with the project records.
GS1 Barcode Support From MPS
Milano Promotional Services provides GS1 barcode services including barcode creation, review, verification and testing support for promotional programs. Also see UPC vs. GTIN: What Brands Need to Know and Common Barcode Problems That Can Cause Retail Scanning Issues.
Need a Promotional Processing Partner?
Explore MPS services or talk with our team about the right processing and fulfillment solution for your program.