Identifier integrity
Length, Mod-10 check digit, normalization across GTIN-8, GTIN-12, GTIN-13, and GTIN-14, plus duplicate identifiers.
Free Sunrise 2027 readiness audit
Catch catalog errors before they reach print.
Upload the CSV you already use. The audit checks GTINs, duplicate identifiers, missing product data, and GS1 Digital Link syntax. Each finding points to the row that needs attention.
You do not need an account or a sales call. The report opens when the check finishes.
GTIN validationDuplicate detectionDigital Link syntaxArtwork preflightApproved resolver routes
Audit / 01
Start with the source file.
A header row and a gtin or upc column are enough. Product names and existing URLs make the report more useful.
Checks / 02
Each finding starts with a row number.
The same file produces the same findings. A model does not decide whether a GTIN or Digital Link is valid.
Catalog owner
Product data
Blank product names are returned with their row numbers. The report does not invent or complete product claims.
Digital Link syntax
Existing URLs are checked for GS1 Digital Link structure, malformed values, and GTINs that disagree with the catalog row.
Migration worklist
Missing and plain product URLs are counted so the team can estimate how many destinations still need Digital Link work.
Workflow / 03
Move toward print in the right order.
An identifier error is cheaper to fix in a spreadsheet than on finished packaging.
Fix the identifiers.
Correct failed check digits, reused GTINs, and missing names before building URLs or changing artwork.
Output: row-level worklistCheck the digital file.
Preflight can measure module size, quiet zone, contrast, the encoded URL, and whether the GTIN matches the catalog.
Digital preflight cannot predict ink, substrate, or curvature.Scan a printed sample.
Ask a qualified verifier to test the code under the intended production process before a full packaging run.
Physical verification remains a separate step.GET/01/00036000291452
307Locationbrand.example/products/hot-sauce
Route status: customer approved
Resolver / 04
The printed URL needs a dependable home.
Paid plans host GS1 Digital Link resolver routes, keep destination changes in version history, and let the brand use a domain it controls. A route stays staged until the customer approves the destination.
How to choose a resolver domainPlans / 05
Choose by catalog size.
The audit is free. Paid plans begin when the catalog needs hosted routes and monitoring.
01Starter
Starter
$49/month
- Up to 1,000 products
- Resolver hosting
- Basic product pages
- Product and route export
02Growth
Growth
$149/month
- Up to 10,000 products
- Brand-owned domain
- Scan analytics
- Route version history
03Operations
Operations
$399/month
- Up to 100,000 products
- API and signed webhooks
- Destination monitoring
- Operational exports
Scope / 06
What the software cannot tell you.
The report covers the catalog file and Digital Link syntax. It cannot see the press, substrate, or a retailer's rollout plan.
Sunrise 2027 is an industry target.
It is not a law or a universal retailer mandate. Confirm timing and barcode requirements with each trading partner.
The audit is not GS1 certification.
Stampwright reports the results of automated conformance checks against GS1 Digital Link syntax.
Product claims come from the brand.
Stampwright stores customer-supplied product facts. It does not originate safety, composition, environmental, or regulatory claims.
A screen cannot verify a print run.
Have a qualified verifier scan a printed sample before production.
Plain-language guides
See all guidesQuestions before you upload
What file do I need?
A CSV or TSV file with a header row and a gtin, upc, ean, or barcode column. Product name and URL columns are optional.
Does Stampwright change the catalog?
No. The source file is read to produce the report. Stampwright does not write corrections back into it.
Who can see the report?
The result has a private share link. Anyone with that link can open it, so treat it like a work document and share it only with the people who need it.
How is the report stored?
The report is retained so the private link continues to work. The privacy policy explains retention and deletion requests.
Free catalog audit