Validation rules
BR-05
The invoice currency code (BT-5) is missing.
- Rule
BR-05— official EN 16931 / XRechnung rule- Severity
- error
- Business term
BT-5— Invoice currency- Field in your JSON
invoice.currency- Detected by
- tier 3 — KoSIT validator (authoritative)
- Reachability
- Only reachable when validating your own XML — normbill-generated documents cannot trigger it
invoice.currency defaults to EUR in the request schema, so generated documents always carry BT-5.
How to fix it
Add cbc:DocumentCurrencyCode with an ISO 4217 code, e.g. EUR.
BR-05 auf Deutsch — was bedeutet der Fehler?
Der Währungscode der Rechnung (BT-5) fehlt.
So beheben Sie den Fehler
Ergänzen Sie cbc:DocumentCurrencyCode mit einem ISO-4217-Code, z. B. EUR.
Official sources
- XRechnung specification (KoSIT / xeinkauf.de)
- KoSIT validator on GitHub and the XRechnung validator configuration
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.