Validation rules
BR-CO-12
The sum of document-level charges (BT-108) does not equal the sum of the individual charge amounts (BT-99).
- Rule
BR-CO-12— official EN 16931 / XRechnung rule- Severity
- error
- Business term
BT-108— Sum of charges on document level- Field in your JSON
invoice.charges- Detected by
- tier 3 — KoSIT validator (authoritative)
- Reachability
- Only reachable when validating your own XML — normbill-generated documents cannot trigger it
normbill computes BT-108 from the charges it serializes, so generated documents always balance.
How to fix it
Recompute cbc:ChargeTotalAmount as the sum of all document-level charge cbc:Amount values.
BR-CO-12 auf Deutsch — was bedeutet der Fehler?
Die Summe der Zuschläge auf Dokumentebene (BT-108) entspricht nicht der Summe der einzelnen Zuschlagsbeträge (BT-99).
So beheben Sie den Fehler
Berechnen Sie cbc:ChargeTotalAmount als Summe aller Zuschlag-cbc:Amount-Werte neu.
Official sources
- XRechnung specification (KoSIT / xeinkauf.de)
- KoSIT validator on GitHub and the XRechnung validator configuration
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.