Marketplaces are expected to check your IDU, not just store it. The ministry tells them to verify that an IDU has a coherent format and corresponds to the type of product sold, and ADEME gives marketplaces the full list of IDUs, withdrawn ones included, so they can check. 
Ministère de l'Écologie An IDU that fails any of those checks is refused, and on most platforms the listing then falls back to the platform's own charge or is blocked.Sources (4)Ministère de l'ÉcologieMinistère de l'Écologie — FAQ places de marché, article L. 541-10-9 (version du 1er août 2022)Octopia (Cdiscount MarketplaOctopia (Cdiscount Marketplace) — Comment déclarer vos IDU ? (23 octobre 2026)TikTok ShopTikTok Shop — Introduction to Extended Producer Responsibility (30 June 2026)
ADEMEADEME — all about the unique identifier (IDU)
The five usual reasons
| Reason | What it looks like | Fix |
|---|---|---|
| Wrong stream | Your packaging IDU entered for an electrical product | Join the stream the product belongs to; one IDU per stream. Octopia (Cdiscount Marketpla See how many IDUs. |
| Withdrawn IDU | The eco-organisme ended your contract, for example for unpaid contributions ADEME | It reports the withdrawal to ADEME and the IDU stops being valid. Ministère de l'Écologie See IDU withdrawn. |
| Different legal entity | The IDU is in your factory's name, the shop in your trading company's ADEME | The IDU must belong to the company on the seller account. TikTok Shop |
| Supplier IDU, but you are the producer | You import and sell, yet entered your Chinese supplier's IDU ADEME | A supplier's IDU only works when the supplier placed the goods on the French market. Sources (2)Ministère de l'ÉcologieMinistère de l'Écologie — FAQ places de marché, article L. 541-10-9 (version du 1er août 2022)Octopia (Cdiscount MarketplaOctopia (Cdiscount Marketplace) — Comment déclarer vos IDU ? (23 octobre 2026) |
| Format | Typo, spaces, the SIRET instead of the IDU | Copy the IDU exactly from your eco-organisme's certificate; check it in ADEME's register. See check an IDU. Sources (2)ADEMEADEME — all about the unique identifier (IDU)ADEMEADEME — which producers the EPR schemes cover |
Where to check before you enter it
Look your company up in ADEME's public IDU register, or in our IDU register data. The IDU is issued by your eco-organisme after it registers you in SYDEREP, with no step on your side. Sources (2)Octopia (Cdiscount MarketplaOctopia (Cdiscount Marketplace) — Comment déclarer vos IDU ? (23 octobre 2026)ADEMEADEME — all about the unique identifier (IDU)
Price
Our fee. Standard is €190 a year per eligible stream, Plus is €990 a year for up to three streams in one mandate, with a median saving of €1,071 a year in eco-contributions across our published clothing, footwear, electronics and furniture examples. Setup is €0, and eco-contributions are paid at the eco-organisme's published rate with 0% markup. See pricing.
Frequently asked questions
How long until a new IDU works on a marketplace?
Once the eco-organisme has registered you, ADEME issues the IDU, typically within days; marketplaces then validate it on their own schedule. Sources (2)ADEMEADEME — all about the unique identifier (IDU)ADEMEADEME — which producers the EPR schemes cover
Can one IDU cover two companies in our group?
No. The IDU belongs to one legal entity and one stream.
Razvan Toma is the founder of EPR France Rep, a France-established authorised representative (mandataire) for producers with no French establishment. He has worked in waste management and recycling since 2009, running waste-separation programmes inside large B2B organisations in France for clients including Chanel, Microsoft, Decathlon, Pirelli, IKEA, Vinci, Capgemini and E.Leclerc.
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