Validation rules

BR-54

An item attribute (BG-32) must carry both a name (BT-160) and a value (BT-161).

Rule: BR-54 — official EN 16931 / XRechnung rule
Severity: error
Detected by: tier 3 — KoSIT validator (authoritative)
Reachability: Not expressible through the normbill invoice model — documented for completeness

The normbill invoice model has no item attributes (BG-32).

How to fix it

Fill cbc:Name and cbc:Value on every cac:AdditionalItemProperty.

BR-54 auf Deutsch — was bedeutet der Fehler?

Ein Artikelattribut (BG-32) muss Name (BT-160) und Wert (BT-161) tragen.

So beheben Sie den Fehler

Füllen Sie cbc:Name und cbc:Value in jeder cac:AdditionalItemProperty.

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.