can I apply a QR code later to an already produced mattress

What you concretely must do

What is expected of you

The question of whether a QR code can be applied retroactively to an already produced mattress mainly arises in practice with stock that is already in the warehouse at the moment the obligation for that mattress type takes effect. The ESPR does not literally regulate the moment of "application", but it does regulate the requirements that the carrier and the passport must meet — and from this it can be deduced what is and is not practically feasible.

The QR code must be on or with the product

Article 11 of the ESPR (Regulation (EU) 2024/1781) describes that the digital product passport must be accessible via a data field, such as a QR code, which is applied to the product itself or to the packaging, a label or attached documentation. It does not state that this may only happen during the production process. For a company with 10 to 100 employees, this means that applying a label retroactively is not excluded in itself, as long as the code is in one of the permitted locations and technically refers to the correct passport. How that code is precisely generated and linked is described on the page about how the QR code for the product passport ends up on a mattress.

The link between mattress and passport must be correct

A QR code that is applied retroactively must still refer to the passport that belongs to that specific unit. Article 11 is based on a correct, conclusive link between product and passport. For stock mattresses without an identification code, this means that it must first be determined which specifications (filling, core, size, production date) belong to which unit, before a label can be applied. Without a conclusive system for this, there is a risk that a code refers to an incorrect or incomplete passport. The way in which each unit receives its own, unique code is explained on the page about assigning a unique identification code per product.

The label must remain legible and not be misleading

Article 16 and article 17 of the ESPR concern labels and the prevention of counterfeit or misleading labels. A retroactively applied label is subject to the same requirements as a label that is applied in the factory: it must be durably affixed and must not give the impression that it is something other than what it actually is. For a company, this means that a QR sticker that is applied after sale or during storage must be chosen and applied with as much care as a label that is standard in the production process — otherwise there is a risk that it comes loose or needs to be replaced. What can practically be done when a label is nevertheless damaged or comes loose is described on the page about what to do if the QR code of the mattress is damaged.

The moment of obligation determines whether it is necessary

Article 18 of the ESPR regulates the prioritisation and scheduling of product groups for which a digital product passport becomes mandatory. For mattresses, that date has not yet been established; this page will be updated as soon as the delegated act is published. This is relevant to the question about retroactive labelling, because the obligation normally applies from an established date onwards to products placed on the market from that moment on. For mattresses already produced and in stock before that date, it is conceivable that a manufacturer or importer may choose to also provide that stock with a passport and a code — for example to offer a complete range to purchasers who request it.

Where things go wrong in practice

Stock without underlying data. A manufacturer wants to retroactively apply codes to mattresses that have been lying in the warehouse for a year, but the production data (which filling, which core, which batch) can no longer be traced per mattress. Without that data, no passport can be compiled, and only an empty or incomplete QR code remains.

Wrong code on wrong item. When retroactively labelling a large batch of mattresses that are barely distinguishable from each other, a code is accidentally applied to the wrong item. The passport then does not match the physical product.

Label that is not resistant to storage or transport. A sticker that was quickly and cheaply applied retroactively turns out to be loose or illegible after months in the warehouse or during transport to the shop.

Confusion between old and new range. Part of the stock receives a passport, another part (already sold, or just arrived) does not. Without a clear agreement on which batches have and have not been provided with one, confusion arises at the bed specialist shop or hotel purchasing department about which mattresses have a valid passport.

No visibility into what a marketplace or wholesaler has already done. An importer assumes that the manufacturer has already provided the mattresses with a code, while this has not been done, or vice versa. Without a documented agreement, it remains unclear who is responsible for what.

What you can record

• An overview per batch of the production data needed to compile a digital product passport (filling, core, size, production date, raw material supplier).
• A documented procedure for linking a unique code to each physical item, including verification of accuracy before applying the label.
• Agreements with the label or sticker supplier regarding durability and attachment, so that a label applied afterwards performs as well as a label from the production process.
• An overview of which batches of inventory have already been provided with a digital product passport and which have not yet, including the date on which this was done.
• Contractual agreements with wholesalers or importers regarding who is responsible for applying the code to already produced stock — this addresses the question of how data from your own ERP or inventory system can be linked to the product passport, so that inventory status and passport status align.