Why is my marketplace asking for an EPR number?

Marketplace gatekeeper liability refers to environmental rules that hold online platforms legally responsible if their third-party sellers skip compliance obligations. These laws force platforms to verify extended producer responsibility numbers and suspend non-compliant listings to avoid paying the disposal fees themselves.

Historically, environmental regulators struggled to enforce recycling laws against foreign e-commerce merchants. Because these sellers had no physical office, legal entity, or registered assets in the destination country, authorities could not effectively audit them or collect the financial contributions required to fund municipal waste collection. This created a massive compliance gap where domestic retail businesses paid heavily for the national recycling system while international online sellers shipped millions of unregistered plastic mailers and cardboard boxes into the market without contributing.

To close this gap, European regulators fundamentally shifted the point of enforcement. Instead of trying to chase thousands of individual foreign sellers across global borders, they placed the legal burden directly onto the digital platforms that facilitate the retail transactions. By introducing gatekeeper liability, environmental laws transform online marketplaces from passive digital hosts into active regulatory enforcers. If a platform allows an unregistered seller to trade, the platform itself becomes jointly liable for the missing environmental fees and faces severe administrative fines.

What marketplace gatekeeper liability actually means

Gatekeeper liability is a statutory mechanism that uses market access to force environmental compliance. Under extended producer responsibility frameworks, any business placing packaged goods, electronics, or batteries on the market must register with a national environmental authority and pay a commercial compliance scheme to manage the resulting waste. Gatekeeper rules mandate that the online platform must legally verify this registration before allowing the merchant to list their products for sale.

"Since early 2022, EPR obligations apply to marketplaces. If you are a marketplace, you now need to declare the products sold by the sellers using your platform who have not provided a unique identifier."

To manage this legal risk, platforms build automated verification portals where merchants must upload their unique government registration numbers. The platform then cross-references these numbers with the official national databases, such as the LUCID register in Germany or the SYDEREP database in France. If a merchant's number is invalid, expired, or absent, the marketplace automatically hides the merchant's listings from consumers in that specific country to protect its own liability.

In some jurisdictions, the regulations go further than simply requiring the platform to block the seller. The law dictates that the platform takes on the role of the default producer. This means the marketplace must calculate the packaging weights of the non-compliant seller, submit the data declarations, and pay the recycling fees directly to the producer responsibility organisation on their behalf to avoid prosecution. The platform will then typically recover these costs by deducting them directly from the merchant's sales balance, often applying a heavy administrative penalty fee in the process.

Does this apply to me?

If you sell physical products through a third-party online platform, such as a major retail marketplace, an electronics portal, or a global crafts website, these verification rules apply directly to your business. Even if you are a micro-business shipping a few small parcels a year, the marketplace will demand your compliance details. Because the marketplace's own legal safety and financial standing are at risk, they enforce these rules rigidly with automated account suspensions. There are no exemptions based on your seller rating or your sales volume.

If you operate a website or an app that allows other businesses to sell their goods to consumers, you act as the marketplace and bear the gatekeeper liability yourself. For example, under the extended producer responsibility rules for packaging in the United Kingdom, you are classed as carrying out the online marketplace activity if your platform allows non-UK businesses to sell their goods into the UK. If your platform solely hosts UK-established businesses, you are generally exempt from the specific marketplace provision, though the individual domestic sellers must still comply with the standard producer rules.

The scope of the liability is dictated by the specific European regulations governing digital services. The incoming European packaging legislation explicitly ties the definition of an online platform to Article 3, point (i), of Regulation (EU) 2022/2065, ensuring a harmonised legal understanding of which digital services are caught by the gatekeeper duties.

Key deadlines and legal thresholds

The implementation of gatekeeper rules varies by country, as waste management remains a national competence. Marketplaces must continuously update their seller verification algorithms to match the changing deadlines of the countries where their buyers reside.

Common misconceptions about marketplace gatekeeper liability

The marketplace pays my fees out of my sales commission. This is incorrect. The standard commission you pay to a digital platform covers the commercial cost of listing your product, payment processing, and sometimes fulfilment. It does not cover your statutory environmental recycling fees. Unless you have explicitly enrolled in a pay-on-behalf service offered by the platform, you remain legally required to secure your own registration and pay your own compliance invoices directly to the national scheme.

I only need one registration number for all marketplaces. While you use the same national registration number across different platforms within the same country, you cannot use one number for the whole of Europe. Waste management is strictly national. If you sell into Germany, France, and Spain via an online platform, the platform will require you to upload a valid German number, a valid French number, and a valid Spanish number. Providing just one will result in your listings being blocked in the other two countries.

If my listing is active, I am fully compliant. Marketplaces only verify that you hold a valid registration number; they do not verify that your data declarations are accurate. You could provide a valid number to the platform to keep your listings active, but heavily underreport your packaging weights to the environmental authority to save money. In this scenario, the marketplace is satisfied, but you are committing a compliance offence and remain fully liable for administrative fines from the government regulator.

Gatekeeper rules only cover the cardboard shipping box. For merchants using marketplace fulfilment services, it is easy to assume the platform is responsible for the final cardboard shipping box. However, gatekeeper liability requires the platform to ensure the seller is registered for the primary product packaging as well. You are responsible for the plastic blister pack, the glass jar, and the branded retail box that surrounds your actual product, and the marketplace will demand proof that you are financing the recovery of those materials.

5 examples of marketplace gatekeeper liability

1. Suspending unregistered listings A merchant selling wooden toys to Germany via a major online platform ignores repeated email warnings to upload their LUCID packaging register number. On the deadline day, the marketplace automatically hides the merchant's entire inventory from German buyers to comply with national verification laws, instantly halting their sales in that country.

2. Paying on behalf of foreign sellers A digital platform operating in France identifies that several of its third-party sellers based in Asia have failed to secure a French registration. To avoid being blocked by the French authorities, the platform calculates the packaging volumes of those sellers, pays the French compliance scheme directly, and deducts the cost plus an administration fee from the sellers' monthly payouts.

3. Verifying the French Unique Identification Number (UIN) A cosmetics brand uploads their French Unique Identification Number to their seller portal. The marketplace pings the French SYDEREP database via an application programming interface to confirm the number matches the brand's registered legal entity and that their account is in good standing before allowing their new product line to go live.

4. Blocking electronics without WEEE registrations A retailer attempts to list a new range of Bluetooth headphones for sale in Spain. The marketplace portal prevents the listing from being published because the seller has only provided a packaging registration number and has failed to upload the required Waste Electrical and Electronic Equipment (WEEE) registration number for the devices themselves.

5. Reporting UK nation data An online marketplace facilitating sales for international sellers into the United Kingdom gathers the sales data for all its unregistered foreign merchants. The marketplace aggregates this data and submits a comprehensive nation data report to the UK environmental regulators to ensure the packaging volumes from those specific foreign sales are properly recorded.

Terms related to marketplace gatekeeper liability

Frequently asked questions

Why did my marketplace suddenly hide my products?

If your listings have been restricted in a specific country, it is highly likely that you failed to provide a valid extended producer responsibility registration number for that jurisdiction. Marketplaces are legally forbidden from promoting your products if you cannot prove you are funding the recycling of your packaging. You must secure the correct registration and upload the number to your seller dashboard to restore your listings.

Do I need to provide an EPR number for every country I sell to?

Yes. Environmental laws and waste management infrastructure are managed at a national level. There is no pan-European registration. If your marketplace allows you to ship goods to consumers in France, Germany, and Sweden, the marketplace will require you to upload three distinct national registration numbers to prove you are compliant in each destination market.

Can I use my supplier's registration number to satisfy the marketplace?

No. Extended producer responsibility is tied to the legal entity placing the goods on the market. If you buy products wholesale and list them on a marketplace under your own store name, you are the producer in the eyes of the destination country. The marketplace will reject your supplier's number because it does not match your registered business details.

What is a unique identifier in France?

The Unique Identification Number (UIN) is the specific registration format used by the French environmental authorities in the SYDEREP database. When you sign a contract with a French compliance scheme, they issue this number to you. You must then provide this specific string of characters to your online marketplace to prove you are legally permitted to sell packaged goods to French households.

Does gatekeeper liability apply to my own independent website?

No. Gatekeeper liability specifically applies to digital platforms and marketplaces that host third-party sellers. If you run your own independent e-commerce website on a platform like Shopify or Magento, you are the direct seller, not a marketplace. However, while you do not face gatekeeper verification from the software provider, you remain fully liable as the producer and must register directly with the national environmental authorities.

Sources:

• My membership - Citeo.com
• Packaging waste: prepare for extended producer responsibility - Daera
• Packaging and Packaging Waste Regulation (EU) 2025/40
• Extended producer responsibility for packaging: who is affected and what to do