Fabricators caught by EN 10204 cert issues at customer audits almost always make the same three mistakes. They're predictable. They're fixable. But they only get fixed after the audit finding — not before. That pattern is expensive: a finding on a supplier audit triggers a corrective action, a follow-up audit, and a period of elevated scrutiny that affects the entire relationship with the customer.
The three mistakes below account for the majority of EN 10204-related fabricator audit findings. None of them require significant process changes to fix. They require specific, targeted additions to existing processes.
Mistake 1: Accepting 3.1 Certs Without Verifying the Authorized Inspector Field
The cert arrives from the supplier. The header reads "EN 10204 Type 3.1." Incoming inspection records it as received and compliant. The auditor later checks the cert and finds the authorized inspector field blank — or shows only a mill stamp with no named individual.
This is a non-conforming document. EN 10204 3.1 requires the authorized inspector's name and position, not just a stamp. A stamp is not traceable to a person. An auditor cannot verify that a qualified authorized inspector reviewed and signed the cert.
The cert said 3.1 in the header. Nobody checked whether the inspector was actually named. Customer auditor finds the field empty. Finding.
Mistake 2: Not Specifying the Required Cert Type in the Purchase Order
The fabricator's purchase order to the supplier reads: "EN 10204 certificate required." The supplier ships material with a Type 2.2 certificate — a non-specific test report based on representative testing, not specific inspection of the delivered heat. Both parties technically complied with the PO language.
The customer, however, required EN 10204 3.1 for this application. The fabricator's customer contract specified it. The fabricator's supplier PO did not pass that requirement downstream. The material is now in work, and the cert doesn't satisfy the customer's requirement.
The fix is mechanical: every supplier PO line item for material with an EN 10204 requirement must specify the exact type. "EN 10204 3.1 certificate required" or "EN 10204 3.2 certificate required with [named third-party inspector]" — not "certificate required."
Mistake 3: Using Low-Resolution Scans in the Final Cert Package
EN 10204 3.2 requires a third-party inspector's stamp to be legible. This is not a minor detail. The stamp is the only visible evidence that a specific third-party organization was involved in the inspection.
A low-resolution scan — common when certs are scanned at default settings on multifunction copiers — loses stamp detail. Fine text within the stamp becomes unreadable. The auditor cannot identify the third-party organization. The auditor cannot verify the inspection occurred.
The fix: scan certs at 300 DPI minimum. Verify that all stamps are legible before the cert is filed and before it's included in any customer cert package. A one-minute visual check at the scanner prevents this finding.
How to Fix These Before the Next Audit
Three targeted process additions eliminate these three findings:
For Mistake 1: Add "authorized inspector name present and legible" as an explicit line item in your incoming cert acceptance checklist. Not "cert present." Not "cert says 3.1." Specifically: is a named individual identified as the authorized inspector?
For Mistake 2: Add EN 10204 type to every relevant PO line item, pulled from the customer requirement on the sales order. Make this a required field — not a freeform note. The data flows from customer requirement to fabricator PO to supplier delivery.
For Mistake 3: Set scanner default for quality documents to 300 DPI. Add a scan legibility check to the receiving inspection step for 3.2 certs — verify stamp detail before accepting the document.
What to Do If You Already Have Non-Compliant Certs on File
If a review of existing cert files reveals non-compliant 3.1 or 3.2 documents, the path forward is straightforward: contact the original supplier and request corrected documentation.
Mills can reissue certs. An authorized inspector can issue a corrected document that meets the EN 10204 requirements. Third-party inspectors can, in some cases, verify previously witnessed tests and issue a corrected co-signed document. This requires that the original mill records still exist — they almost always do.
Do not attempt to mark up or modify existing certs. Do not issue a service center CoC that claims a higher cert type than the original document supports. Get the corrected document from the issuing mill.
The timeline for obtaining corrected documents varies. Some mills can turn around a corrected cert within days. Others require weeks. Start the process now, before the audit.