Validation rules

BR-DE-20

The debited account identifier (BT-91) does not look like a valid IBAN — for SEPA direct debits (means code 59) XRechnung expects one.

Rule
BR-DE-20official EN 16931 / XRechnung rule
Severity
warning
Detected by
tier 1 — normbill pre-flight (also in the playground)
Reachability
Triggerable from your request JSON (generate & validate)

Tier 1 reports the equivalent finding as NB-IBAN-CHECKSUM on invoice.payment.debited_iban.

How to fix it

Correct invoice.payment.debited_iban, or use a credit-transfer payment means.

BR-DE-20 auf Deutsch — was bedeutet der Fehler?

Die Kennung des belasteten Kontos (BT-91) sieht nicht wie eine gültige IBAN aus — bei SEPA-Lastschriften (Code 59) erwartet die XRechnung eine.

So beheben Sie den Fehler

Korrigieren Sie invoice.payment.debited_iban — oder verwenden Sie eine Überweisungs-Zahlungsart.

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.

Spotted something?

Bug, missing feature, wrong validation result — tell us. The page you're on is attached automatically; email optional.