Your IDU is not on Amazon.
7 reasons it happens and how to fix each one.
Seven minute read. Last updated 15 May 2026.
Before retrying or contacting Amazon, do this one check. Go to syderep.ademe.fr and search for your IDU. If it appears, copy the legal name exactly as displayed. If it does not appear, you are not actually registered yet from Amazon’s perspective, every IDU diagnosis starts here.
Amazon verifies your IDU by querying SYDEREP, the public registry maintained by ADEME. The platform does not call the eco-organism, does not check internal documents, and does not look at your filings. If SYDEREP does not return a match, Amazon rejects. The 7 reasons below all reduce to a SYDEREP-side problem or an Amazon-side data entry problem.
1. The IDU is not yet published on SYDEREP
The most common cause. Your eco-organism (Citeo, Refashion, Ecosystem…) confirmed registration by email, sometimes even gave you the IDU number, but ADEME has not yet imported the dossier into the public SYDEREP teleservice. The import runs in weekly batches. Gap is typically 5 to 10 business days from eco-organism approval to SYDEREP publication.
Fix: Wait. Search SYDEREP weekly until the IDU appears. Do not retry uploading on Amazon during the wait, repeated failed attempts can flag your account.
2. The legal name on SYDEREP does not match Amazon Seller Central
Your Amazon legal entity reads “Acme Limited”. SYDEREP reads “ACME LIMITED HK” (the eco-organism added a country suffix). The string comparison fails. Same root cause as on Cdiscount.
Fix: Update your Amazon Seller Central business name to match SYDEREP exactly. Changing SYDEREP is slower (requires re-filing with the eco-organism). It is almost always faster to edit the Amazon side.
3. You uploaded a packaging IDU but the listing also needs WEEE or batteries
Amazon parses your listing taxonomy and demands one IDU per applicable stream. A Bluetooth speaker triggers packaging (the box) + WEEE (the electronics) + batteries (the embedded battery). Three IDUs, three filings. Sellers regularly upload one IDU thinking it covers everything.
Fix: Audit your catalog against the 19 EPR streams. File a separate dossier with each relevant eco-organism. The representative mandate covers any number of streams under one umbrella.
4. You pasted the IDU into the wrong field in Seller Central
Amazon has stream-specific fields under Compliance → Extended Producer Responsibility. You must paste the IDU into the field matching that stream, pasting a Citeo packaging IDU into the WEEE field returns “invalid”. Amazon checks not only that the IDU exists but that it covers the right stream.
Fix: In Seller Central, go to Settings → Compliance → EPR France. Confirm each IDU is in the correct stream row before saving. The IDU prefix (the first 4 characters) typically signals the stream, your representative can map them for you.
5. Amazon cache lag (24-72 hours)
After you submit a valid IDU, Amazon caches its SYDEREP lookup. Cache flushing is asynchronous, typically 24 to 72 hours. Your listings will not re-activate instantly even on a successful submission.
Fix: Wait 3 business days. If listings are still down on day 4, open a case in Seller Central referencing the IDU and ASKING for cache refresh. Templates and timelines in our Amazon suspension recovery guide.
6. The IDU was revoked
IDUs are not permanent. The eco-organism can revoke your IDU if you miss an annual declaration, fail to pay eco-contributions, or breach your mandate. SYDEREP updates within a week of revocation. Amazon then returns “IDU not found” on a number it accepted six months ago.
Fix: Contact your eco-organism (or your representative) to understand which obligation triggered the revocation, then settle it. The IDU is typically restored within 5 business days after the obligation is met. Note: this is a known pain point, set up calendar reminders for annual declarations (usually due 28 February for the previous year’s tonnage).
7. You operate multiple Amazon seller accounts on the same IDU
Each legal entity gets one IDU per stream. If you operate two separate Amazon Seller Central accounts under two different legal entities, you need two registrations, one IDU per entity per stream. Reusing the same IDU across entities will pass on one account and fail on the other.
Fix: File a separate registration for each legal entity. The representative can group them under one mandate but the eco-organism dossiers are separate.
Diagnostic checklist
1. Is the IDU on SYDEREP? Search syderep.ademe.fr.
2. Does the legal name on SYDEREP match Seller Central character-for-character?
3. Does the catalog need IDUs in other streams (WEEE, batteries, textile)?
4. Did you paste each IDU into the matching stream field?
5. Has it been 72 hours since you uploaded?
6. Did the eco-organism revoke an IDU for a missed declaration?
7. Do you operate multiple Amazon entities on one IDU?
If three or more of these come back unclear, the fastest path is a 20-minute call with a representative who can read your SYDEREP record and tell you within minutes which item is breaking the verification. See our pricing or contact us with the rejection screenshot.
Frequently asked questions
Where does Amazon actually check my IDU number?
Amazon queries SYDEREP, the public registry maintained by ADEME, at syderep.ademe.fr. It does not call your eco-organism, does not read internal documents, and does not look at your filings directly. If a SYDEREP search does not return a match, Amazon rejects the entry regardless of what your eco-organism has confirmed by email.
My eco-organism confirmed my registration, so why does Amazon still say invalid?
ADEME imports eco-organism confirmations into the public SYDEREP teleservice in weekly batches, with a typical gap of 5 to 10 business days between eco-organism approval and public SYDEREP publication. Amazon's check fails during that window even though your registration is genuinely confirmed.
Why does one IDU work for some of my products but not others?
Amazon checks stream by stream against your product taxonomy. A single product like a Bluetooth speaker needs packaging, WEEE and battery IDUs together, and a packaging-only IDU will not cover the electronics or battery components, leaving those specific listings rejected.
Can Amazon revoke an IDU that worked before?
The eco-organism can revoke your IDU, not Amazon, if you miss an annual declaration, fail to pay eco-contributions, or breach your mandate. SYDEREP reflects the revocation within about a week, and Amazon then returns "IDU not found" on a number it previously accepted, usually restored within 5 business days of settling the missed obligation.
How long should I wait after uploading a correct IDU before contacting Amazon?
Amazon caches its SYDEREP lookups asynchronously, typically 24 to 72 hours before listings reactivate even on a valid submission. Wait three business days first; if listings are still down on day four, open a Seller Central case referencing the IDU and request a cache refresh.
EPR France 2026 Compliance Checklist
All 19 streams, the 5-step path to IDU, marketplace deadlines. The PDF you wish you had before your first Amazon France IDU upload.