Validation rules

PEPPOL-EN16931-R043 — Peppol BIS rule

An allowance/charge indicator must be exactly 'true' or 'false'.

Rule: PEPPOL-EN16931-R043 — 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

The serializer writes the indicator as a constant.

How to fix it

Use the literal values true/false in cbc:ChargeIndicator.

PEPPOL-EN16931-R043 auf Deutsch — was bedeutet der Fehler?

Ein Nachlass-/Zuschlagsindikator muss exakt 'true' oder 'false' sein.

So beheben Sie den Fehler

Verwenden Sie die Literale true/false in cbc:ChargeIndicator.

Related rules

PEPPOL-EN16931-R042 — An allowance/charge base amount is present, so its percentage must be provided as well.
PEPPOL-EN16931-R044 — A charge on price level is not allowed — only allowances (indicator 'false').
PEPPOL-EN16931-R041 — An allowance/charge percentage is present, so its base amount must be provided as well.
PEPPOL-EN16931-R046 — The item net price must equal the gross price minus the price allowance when a gross price is provided.
PEPPOL-EN16931-R040 — An allowance/charge amount must equal base amount × percentage / 100 when both base amount and percentage…
PEPPOL-EN16931-R053 — Exactly one tax total with tax subtotals must be provided.

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.