A note subject code appears more than once
The subject codes PMT (recovery fee), PMD (late-payment penalties), AAB (discount) and TXD (tax mention) may each appear only once in the invoice notes (BT-21).
Only the issuer holds this value: Factlint reports it and never fabricates it. Test your invoice to find out whether it is affected.
The message your validator prints
Copied verbatim from the sealed artefact: this is the exact sentence the check prints when this rule fails.
ciiBR-FR-06/BT-21 : Le code sujet PMT (indemnité forfaitaire pour frais de recouvrement) ne doit apparaître qu'une seule fois dans les notes (BG-1).
ciiBR-FR-06/BT-21 : Le code sujet PMD (pénalités de retard) ne doit apparaître qu'une seule fois dans les notes (BG-1).
ciiBR-FR-06/BT-21 : Le code sujet AAB (mention d’escompte ou d’absence d’escompte) ne doit apparaître qu'une seule fois dans les notes (BG-1).
ciiBR-FR-06/BT-21 : Le code sujet TXD (mention de taxe) ne doit apparaître qu'une seule fois dans les notes (BG-1).
ubl[BR-FR-06/BT-21] : Le code sujet PMT (indemnité forfaitaire pour frais de recouvrement) ne doit apparaître qu'une seule fois dans les notes (BG-3).
ubl[BR-FR-06/BT-21] : Le code sujet PMD (pénalités de retard) ne doit apparaître qu'une seule fois dans les notes (BG-3).
ubl[BR-FR-06/BT-21] : Le code sujet AAB (mention d’escompte ou d’absence d’escompte) ne doit apparaître qu'une seule fois dans les notes (BG-3).
ubl[BR-FR-06/BT-21] : Le code sujet TXD (mention de taxe) ne doit apparaître qu'une seule fois dans les notes (BG-3).
Quoted from schematron-fnfe 1.4.0.03, licensed under Apache-2.0.
Common searches around this code
These phrases mirror what an integrator searches for: code, syntax, rule, business field and correction.
Test your file with this error in mind
Upload the invoice involved: the report will say whether this code appears, where it appears in the document, and whether Factlint can only report it or also fix it.
To automate this check in an ERP flow, call the validation API and link every returned code to its public page.
Why this error happens
Each legal mention has one value, and one only: two PMD notes with different wordings would let the recipient pick their penalty. The duplicate most often comes from a template that writes the mention and a module that adds it as well. The rule comes from the FNFE Schematron package, not from the European standard: an invoice perfectly compliant with EN 16931 triggers it as soon as it is judged against the French base.
How to fix it
Keep a single note per subject code and remove the others. Which one to keep is your decision: Factlint does not choose between two legal mentions.
Severity returned by the rule set
Blocking since 1 September 2026: the current base, `fr-2026-09`, seals the FNFE 1.4.0.03 artefact in fatal mode, and it is the one the pinned engine applies by default. An invoice issued in August 2026 is judged against `fr-2026-08`, where the same rule comes out as a warning — which already rules out a “compliant” verdict. The API returns the severity of the rule set pinned for the judged invoice.
XML correction example
<ram:IncludedNote><ram:Content>Pénalités : taux légal x3.</ram:Content><ram:SubjectCode>PMD</ram:SubjectCode></ram:IncludedNote><ram:IncludedNote><ram:Content>Pénalités : 10 % par mois.</ram:Content><ram:SubjectCode>PMD</ram:SubjectCode></ram:IncludedNote>
<ram:IncludedNote><ram:Content>Pénalités de retard : trois fois le taux d'intérêt légal.</ram:Content><ram:SubjectCode>PMD</ram:SubjectCode></ram:IncludedNote>