einvoice / EN 16931 / XRechnung rule reference

BR-DE-3

Seller city (BT-37) must be transmitted (non-empty).

Das Element "Seller city" (BT-37) muss übermittelt werden.

Deutsche Fassung: Amtlicher KoSIT-Text (official KoSIT assert text).

Requires: Seller city (BT-37) must be transmitted (non-empty).
Business terms: BT-37
Syntax: Binds the UBL-2.1 Invoice / CreditNote syntax and the UN/CEFACT-CII syntax
Location (UBL-2.1 path): /ubl:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PostalAddress
Fix: Add the required element at `/ubl:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PostalAddress`: Seller city (BT-37) must be transmitted (non-empty).
Fix (Deutsch): Ergänzen Sie das erforderliche Element bei `/ubl:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PostalAddress`: Das Element "Seller city" (BT-37) muss übermittelt werden.
Severity: fatal
Provenance source: xrechnung-ubl
Provenance assert: Das Element "Seller city" (BT-37) muss übermittelt werden.

The Location above is a UBL-2.1 path, and no UN/CEFACT-CII path for this rule is published here; Fix and Fix (Deutsch), verbatim from remediation_catalog.json and not reworded here; the UN/CEFACT-CII binding of this rule is differentially proven against the official KoSIT XRechnung 2.5.0 (XRechnung 3.0.2) Schematron.

Everything here is free and open source — pick up whatever helps, at your own pace:

Licensing — Apache-2.0 for everyone, including closed-source embedding; an optional $29 / $290 commercial license adds support and rule-corpus update notices.
German remediation (--lang de) — the German fix for this rule is in the section above; the CLI surfaces it in place of the English message with --lang de.
Quickstart / free on-ramp — the README, a copy-paste CI-gate recipe, and a 5-minute worked walkthrough.

Rendered verbatim from remediation_catalog.json (single source of truth); regenerate with gen_site.py. This page is self-contained and opens offline with no network requests.