Validation rules

BR-CO-08

An invoice line charge reason code (BT-145) and reason text (BT-144) should describe the same type of charge.

Rule: BR-CO-08 — 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 pinned Schematron implements this as an always-true assertion, so the validator never reports it in practice.

How to fix it

Align the line charge's reason and reason_code so they describe the same thing.

BR-CO-08 auf Deutsch — was bedeutet der Fehler?

Code (BT-145) und Text (BT-144) des Grundes eines Positionszuschlags sollen denselben Typ beschreiben. Die amtliche Schematron-Implementierung prüft dies faktisch nicht.

So beheben Sie den Fehler

Bringen Sie reason und reason_code des Positionszuschlags in Übereinstimmung.

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.