Validation rules

BR-DE-8

Buyer city (BT-52) is missing.

Rule: BR-DE-8 — official EN 16931 / XRechnung rule
Severity: error
Business term: BT-52 — Buyer city
Field in your JSON: invoice.buyer.address.city

How to fix it

Set invoice.buyer.address.city.

BR-DE-8 auf Deutsch — was bedeutet der Fehler?

Der Ort des Käufers (BT-52) fehlt in der Anschrift.

So beheben Sie den Fehler

Setzen Sie invoice.buyer.address.city.

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.