Validation rules

BR-DE-CVD-06-a

A line classified with the CVD scheme (BT-158) must carry exactly one item attribute named 'cva' (BT-160).

Rule: BR-DE-CVD-06-a — 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

Belongs to the 'XRechnung CVD' sibling CIUS (Clean Vehicle Directive) — a separate CustomizationID normbill never generates; reachable only for CVD XML submitted to /v1/invoices/validate.

How to fix it

Add the 'cva' item attribute to the CVD-classified line.

BR-DE-CVD-06-a auf Deutsch — was bedeutet der Fehler?

Eine mit dem CVD-Schema klassifizierte Position (BT-158) muss genau ein Artikelattribut „cva“ (BT-160) tragen. Diese Regel gehört zur Schwester-CIUS „XRechnung CVD“ (Clean Vehicle Directive), die normbill nicht erzeugt.

So beheben Sie den Fehler

Ergänzen Sie das Attribut „cva“ in der CVD-Position.

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.