`BR-FR-01`

France CTC (FNFE) · validation rule

France CTC (FNFE)Warning

France caps an invoice number at 35 characters — BT-1, the reference to a preceding invoice (BT-25) and the line-level reference alike. EN 16931 sets no limit, so a long ERP key that passes everywhere else is flagged here.

Field: document.id (BT-1)
Rule set: France CTC (FNFE)
Rule-set version: FNFE CTC-FR 1.4.0.04 transition profile (BR-FR Flux 2, 2026-09-03) · in force since 2026-09-24 · Rule-set changelog
Who has to fix it: The sender

This is a property of the file you received, so it cannot be corrected on your side without changing the document — ask the supplier to reissue it.

Check your own invoice

Drop the file that failed. We parse it, run the official rule sets against it and list every finding with a fix — 20 invoices per day, no key, nothing stored.

Open the live demo

Same explanation over the API: GET /v1/rules/BR-FR-01?lang=en