Validation rules

PEPPOL-EN16931-R040

An allowance/charge amount must equal base amount × percentage / 100 when both base amount and percentage are present.

Rule: PEPPOL-EN16931-R040 — official EN 16931 / XRechnung rule
Severity: error
Detected by: tier 1 — normbill pre-flight (also in the playground)
Reachability: Triggerable from your request JSON (generate & validate)

normbill's pre-flight reports the equivalent finding as NB-AC-MISMATCH at tier 1.

How to fix it

Fix the amount, or omit it and let normbill compute base_amount × percent.

PEPPOL-EN16931-R040 auf Deutsch — was bedeutet der Fehler?

Ein Nachlass-/Zuschlagsbetrag muss Grundbetrag × Prozentsatz / 100 entsprechen, wenn beide angegeben sind.

So beheben Sie den Fehler

Korrigieren Sie den Betrag — oder lassen Sie ihn weg, damit normbill base_amount × percent berechnet.

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.