Validation rules

PEPPOL-EN16931-R020

The seller electronic address (BT-34) must be provided.

Rule: PEPPOL-EN16931-R020 — official EN 16931 / XRechnung rule
Severity: error
Business term: BT-34 — Seller electronic address
Field in your JSON: invoice.seller.electronic_address
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-EADDR-SELLER at tier 1.

How to fix it

Set invoice.seller.electronic_address, or invoice.seller.contact.email (used as the electronic address).

PEPPOL-EN16931-R020 auf Deutsch — was bedeutet der Fehler?

Die elektronische Adresse des Verkäufers (BT-34) muss übermittelt werden.

So beheben Sie den Fehler

Setzen Sie invoice.seller.electronic_address oder invoice.seller.contact.email (wird als elektronische Adresse verwendet).

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.