A Digital Product Passport QR code is the data carrier that links a physical product to its online passport. Using a GS1 Digital Link URL keeps the same code working across passport versions, at product, batch or serial level, so a printed label stays valid after the data is updated.
What should a DPP QR code point to?
It should resolve to a persistent, controlled public passport, not a fragile marketing URL. The link has to keep working for the retention period the rules require, even after the product data is revised and re-published.
QR code, DataMatrix and identifier level
Choose the carrier and the identifier level to match the passport's granularity. A model-level passport can resolve from the GTIN; item-level cases resolve from the GTIN plus a serial. GS1 Digital Link gives the code a standard, machine-readable structure.
How DPP Shield generates and maintains it
DPP Shield produces QR and DataMatrix carriers on GS1 Digital Link paths and keeps the resolved passport URL stable across versions. Verified GS1 prefix ownership is required before GTIN-based identifiers are published, so the code points to an identifier you are entitled to use.
Frequently asked questions
Is a QR code on the label a passport?
No. The code only carries an address. The passport is the maintained product data it points to, with the content and access rules the applicable EU act sets.
Will the QR keep working after I update the passport?
Yes. DPP Shield keeps the resolved URL stable across versions, so a printed code stays valid after the data changes.