Validation rules

BR-25 — EN 16931 rule

An invoice line has no item name (BT-153).

Rule: BR-25 — official EN 16931 / XRechnung rule
Severity: error
Business term: BT-153 — Item name
Field in your JSON: invoice.lines[*].name
Detected by: tier 3 — KoSIT validator (authoritative)
Reachability: Only reachable when validating your own XML — normbill-generated documents cannot trigger it

The request schema requires line.name.

How to fix it

Add cac:Item/cbc:Name with a non-empty name.

BR-25 auf Deutsch — was bedeutet der Fehler?

Eine Rechnungsposition hat keine Artikelbezeichnung (BT-153).

So beheben Sie den Fehler

Ergänzen Sie cac:Item/cbc:Name mit einer nicht-leeren Bezeichnung.

Related rules

BR-24 — An invoice line has no line net amount (BT-131).
BR-26 — An invoice line has no item net price (BT-146).
BR-27 — The item net price (BT-146) must not be negative.
BR-23 — An invoiced quantity has no unit of measure code (BT-130).
BR-22 — An invoice line has no invoiced quantity (BT-129).
BR-28 — The item gross price (BT-148) must not be negative.

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.