Validation rules

BR-CL-04 — EN 16931 rule

The invoice currency code (BT-5) is not part of ISO 4217.

Rule: BR-CL-04 — official EN 16931 / XRechnung rule
Severity: error
Business term: BT-5 — Invoice currency
Field in your JSON: invoice.currency

How to fix it

Set invoice.currency to a real ISO 4217 alpha-3 code, e.g. "EUR", "USD" or "CHF".

BR-CL-04 auf Deutsch — was bedeutet der Fehler?

Die Rechnungswährung (BT-5) ist kein Code der ISO-4217-Liste. Das Eingabeschema prüft nur das Format (drei Großbuchstaben) — ein erfundener Code wie "EUZ" fällt erst beim KoSIT-Validator auf, der das Dokument ablehnt.

So beheben Sie den Fehler

Setzen Sie invoice.currency auf einen echten ISO-4217-Code, z. B. "EUR", "USD" oder "CHF".

Related rules

BR-05 — The invoice currency code (BT-5) is missing.
BR-CL-03 — An amount carries a currencyID attribute that is not an ISO 4217 currency code.
BR-CL-05 — The VAT accounting currency code (BT-6) is not part of ISO 4217.
BR-CL-06 — The VAT point date code (BT-8) is not one of the UNTDID 2005 codes EN 16931 permits (3, 35 or 432).
BR-CL-01 — Type code 381 (credit note) is not allowed in the UBL Invoice syntax — UNTDID 1001 lists 381 only for UBL…
BR-CL-07 — The scheme of an invoiced-object identifier (BT-18 schemeID) is not a UNTDID 1153 code.

Official sources

Every 422 from the API lists the rule id, the path in your request JSON, a plain-language message and a suggested fix — see the docs overview for the report format.

Or try it live: drop any XRechnung XML on the free validator — same KoSIT-backed report, no account.