Validation rules

cvc-complex-type.2.4.d — EN 16931 rule

An element appears after the content model is already complete — the schema allows no further children at that position.

Rule
cvc-complex-type.2.4.d — official EN 16931 / XRechnung rule
Severity
error
Detected by
tier 2 — XML schema (XSD)
Reachability
Only reachable when validating your own XML — normbill-generated documents cannot trigger it

normbill's serializer emits schema-valid XML by construction; this can only fire for XML submitted to /v1/invoices/validate.

How to fix it

Remove the trailing element or move it to the position the UBL 2.1 sequence allows.

cvc-complex-type.2.4.d auf Deutsch — was bedeutet der Fehler?

Der KoSIT-Validator lehnt das Dokument bereits bei der XML-Schema-Prüfung (XSD) ab: Ein Element folgt, obwohl das Inhaltsmodell bereits abgeschlossen ist — an dieser Position sind keine weiteren Kindelemente erlaubt.

So beheben Sie den Fehler

Entfernen Sie das überzählige Element — oder verschieben Sie es an die Position, die die UBL-2.1-Sequenz erlaubt.

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.

Spotted something?

Bug, missing feature, wrong validation result — tell us. The page you're on is attached automatically; email optional.