Validation rules

BR-10

The buyer postal address (BG-8) is missing.

Rule: BR-10 — official EN 16931 / XRechnung rule
Severity: error
Detected by: tier 3 — KoSIT validator (authoritative)
Reachability: Only reachable when validating your own XML — normbill-generated documents cannot trigger it

invoice.buyer.address (with a country) is required by the request schema, so generated documents always contain BG-8.

How to fix it

Add cac:PostalAddress to the customer party — the country code (BT-55) is the minimum EN 16931 requires.

BR-10 auf Deutsch — was bedeutet der Fehler?

Die Postanschrift des Käufers (BG-8) fehlt.

So beheben Sie den Fehler

Ergänzen Sie cac:PostalAddress bei der Käuferpartei — mindestens der Ländercode (BT-55) ist Pflicht.

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.