einvoice / EN 16931 / XRechnung rule reference

BR-DE-CVD-01

So beheben Sie den Fehler

Das Element "Contract reference" (BT-12) muss übermittelt werden.

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

A CVD invoice must transmit the 'Contract reference' (BT-12, cac:ContractDocumentReference/cbc:ID, non-empty).

Requires
a CVD invoice must transmit the 'Contract reference' (BT-12, cac:ContractDocumentReference/cbc:ID, non-empty).
Business terms
BT-12
Syntax
Binds the UBL-2.1 Invoice / CreditNote syntax and the UN/CEFACT-CII syntax
Location (UBL-2.1 path)
cac:ContractDocumentReference/cbc:ID
Fix (Deutsch)
Korrigieren Sie `cac:ContractDocumentReference/cbc:ID`, sodass gilt: Das Element "Contract reference" (BT-12) muss übermittelt werden.
Fix
Correct `cac:ContractDocumentReference/cbc:ID` so that a CVD invoice must transmit the 'Contract reference' (BT-12, cac:ContractDocumentReference/cbc:ID, non-empty).
Severity
fatal
Provenance source
xrechnung-ubl
Provenance assert

Das Element "Contract reference" (BT-12) 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.

Korrektur prüfen: Laden Sie die geänderte Rechnung in den Browser-Validator unter /einvoice/validate/ — er führt dieselbe Engine lokal im Browser aus, ohne Upload, und meldet BR-DE-CVD-01 nicht mehr, sobald die Korrektur greift.

Where to check the fix: paste the corrected invoice into the browser validator at /einvoice/validate/ — it runs this same engine locally in your browser, with no upload, and stops reporting BR-DE-CVD-01 once the edit lands.

The same invoice, failing and fixed

No vendored test suite ships a labelled example for this rule, so this pair was found rather than written. The engine was run over the vendored instance corpus/xrechnung-testsuite/src/test/technical-cases/cvd/02.01a-cvd_INVOICE_ubl.xml under --profile xrechnung, then re-run over the same file with one mechanical edit applied to one element, over and over, until the edit below changed the verdict: the text content of ID was deleted, leaving the element present but empty. The page publishes it because the engine reported BR-DE-CVD-01 for the edited document and did not report it for the untouched one.

UBL Invoice (CVD profile) — fails

The vendored file around the change, verbatim:

<cac:ContractDocumentReference>
  <cbc:ID></cbc:ID>
</cac:ContractDocumentReference>

UBL Invoice (CVD profile) — passes

The same lines as 02.01a-cvd_INVOICE_ubl.xml actually ships them — this block is the fix for the block above:

<cac:ContractDocumentReference>
  <cbc:ID>0000000752</cbc:ID>
</cac:ContractDocumentReference>

What the engine reports for the edited invoice

{
  "element": "cac:ContractDocumentReference/cbc:ID",
  "field": "cac:ContractDocumentReference/cbc:ID",
  "fix_hint": "Correct `cac:ContractDocumentReference/cbc:ID` so that a CVD invoice must transmit the 'Contract reference' (BT-12, cac:ContractDocumentReference/cbc:ID, non-empty).",
  "location": "cac:ContractDocumentReference/cbc:ID",
  "message": "The element 'Contract reference' (BT-12) must be transmitted in a Clean-Vehicle-Directive invoice.",
  "rule": "BR-DE-CVD-01",
  "severity": "fatal",
  "terms": [
    "BT-12"
  ],
  "title": "A CVD invoice must transmit the 'Contract reference' (BT-12, cac:ContractDocumentReference/cbc:ID, non-empty)."
}

Rule ids the engine reports for 02.01a-cvd_INVOICE_ubl.xml untouched: BR-CL-13. After the edit, BR-DE-CVD-01 is reported that was not before.

Two honest limits. This is an edit that provokes the rule, not the only one, and it is not a claim about how real exporters break it. And it is the reverse of the fix a reader needs: the passing block is the vendored file's own content, which is what a conformant invoice looks like here.

Reproduce it yourself: take corpus/xrechnung-testsuite/src/test/technical-cases/cvd/02.01a-cvd_INVOICE_ubl.xml from this repository, apply the one edit named above, and run einvoice validate 02.01a-cvd_INVOICE_ubl.xml --profile xrechnung --format json, or paste the file into the browser validator, which runs this same engine locally with no upload.

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