Validation rules

BR-DE-23-a — XRechnung rule

Payment means is a credit transfer (code 30/58) but no payment account (IBAN, BT-84) is given.

Rule: BR-DE-23-a — official EN 16931 / XRechnung rule
Severity: error
Business term: BT-84 — Payment account IBAN
Field in your JSON: invoice.payment.iban

How to fix it

Set invoice.payment.iban, or change invoice.payment.means_code.

BR-DE-23-a auf Deutsch — was bedeutet der Fehler?

Als Zahlungsart ist eine Überweisung (Code 30 oder 58) angegeben, aber es fehlen die Kontoinformationen des Zahlungsempfängers (BG-17, insbesondere die IBAN, BT-84).

So beheben Sie den Fehler

Setzen Sie invoice.payment.iban — oder ändern Sie invoice.payment.means_code.

Related rules

BR-DE-25-b — Payment means is a SEPA direct debit (code 59), so a payee account (BG-17) must not be present. normbill…
NB-IBAN-CHECKSUM — The IBAN fails its checksum — this is almost certainly a typo.
BR-50 — A credit-transfer payment account is present but its account identifier (IBAN, BT-84) is empty.
BR-61 — The payment means is a credit transfer (code 30 or 58), so a payment account identifier (IBAN, BT-84) is…
BR-DE-19 — The payment account identifier (BT-84) does not look like a valid IBAN — for SEPA credit transfers (means…

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.