A summer campaign might run for eight weeks. The packs printed for it will sit in warehouses, on shelves and in kitchen cupboards for far longer. When the campaign's QR code is tied to the campaign, every one of those packs loses its digital voice the day the microsite comes down. This article makes the business case for keeping the product identity separate from — and more durable than — any campaign that uses it.
Two different lifespans
A campaign's life is set by the marketing calendar: a launch date, a media plan, an end date.
A pack's scan life is set by the product: how long it takes to sell through, how long it is kept at home, and, for some categories, how long it stays in use afterwards. A bottle of detergent may be scanned weeks after purchase. A coil of electrical cable may be scanned by an installer months after it left the factory.
These two clocks rarely line up. A pack printed in the first week of a campaign can easily be scanned long after the campaign has ended.
What a dead code costs
When a campaign code stops working, the costs are mostly invisible:
- Lost moments. The person scanning is holding your product and actively asking for information. An error page wastes the one moment a brand cannot buy.
- Lost trust. A broken link on a pack looks careless, and on some products — food, cosmetics, electrical goods — it can make people doubt the product itself.
- Fragmented data. Each campaign brings its own codes, platforms and reports. Comparing this year with last year means stitching together separate datasets.
- Pack clutter. When every initiative needs its own code, packs collect codes, and shoppers do not know which to scan.
- Lock-in. If the code's domain sits with an agency or platform, changing supplier can mean losing control of every pack already printed.
Treat the identity as the asset
A better model separates two things:
- The asset: a GS1 Digital Link on the pack, built from the product's GTIN and optionally its batch, on a domain the brand owns. It identifies the product for as long as the pack exists.
- The tenants: campaigns, content and services that occupy that address for a while. A resolver behind the domain decides which tenant answers a scan today.
The technical side of this separation — domains, preserving issued addresses, identity levels — is covered in why brands should separate product identity from the digital experience. The point for marketing teams is simpler: the code on pack is not campaign material. It is permanent brand real estate that campaigns rent.
A campaign lifecycle that does not break packs
Take a fictional detergent brand, Brightwave, running a refill-and-reward promotion on its 1 kg pack.
Before launch. The pack already carries an identity-based code that opens the product page. The campaign team builds its promotion page and asks for it to become the default destination for the 1 kg GTIN from the launch date. They also write down, in the campaign brief, where scans should go after the end date.
During the campaign. Scans of the 1 kg pack open the promotion. Other Brightwave products are untouched. If one batch of the 1 kg pack has a quality issue mid-campaign, and batch is in the code, quality can point that batch alone to a notice without stopping the promotion for everyone else.
After the campaign. On the end date, the default for the 1 kg pack goes back to the product page. Packs still on shelves, and in cupboards, carry on working. The promotion page can be archived, and nobody has to reprint anything.
Next year. A new campaign uses the same packs and the same codes. Results are directly comparable because every scan, in both years, carries the same GTIN.
Better measurement, not just fewer broken links
Identity-based codes change what marketing can learn. Because each scan carries the product identity, results can be compared across campaigns, by product, by pack size and, if batch is printed, by production run. A brand can see whether a promotion lifted scans of the product it was meant for, or simply moved attention from another one.
That continuity matters for the long-term relationship as well. A consumer who first scans during a campaign can be recognised and welcomed back later through the same pack, which is part of the argument in why connected packaging can create a direct brand relationship after the sale.
Questions to ask before approving artwork
Before any code goes on pack, it is worth asking:
- Does this code identify the product, or only point to a page?
- Who owns the domain in it, and will they still own it when the last pack is scanned?
- Where will scans go the day after the campaign ends?
- Could quality, trade marketing or customer service use the same code, or will they ask for another?
- Is batch (or serial) in the code, if we might need to target or reward individual runs or items?
If the answers are uncomfortable, from marketing QR to connected product infrastructure sets out a step-by-step path. For the wider picture of how one identity serves factory, logistics, retail and consumers, see the connected product journey.
Generate an identity-based code for your product