BR-DE-CVD-01 - Mandatory: contract reference (BT-12)
XRechnung requires the element BT-12 (contract reference) to be present in an invoice covered by the Clean Vehicles Directive (CVD) profile.
BR-DE-CVD-01 - Mandatory: contract reference (BT-12)
XRechnung requires the element BT-12 (contract reference) to be present in an invoice covered by the Clean Vehicles Directive (CVD) profile. This is an XRechnung rule (German KoSIT CIUS). It applies on top of EN 16931 and Peppol, and is mandatory for B2G invoicing in Germany.
What this rule checks
XRechnung requires the element BT-12 (contract reference) to be present in an invoice covered by the Clean Vehicles Directive (CVD) profile.
How to fix it
Add the element BT-12 (contract reference) to the invoice.
Validate against this rule
This rule is part of EN 16931. Check your invoice with the validator that matches your format:
Related rules
Source: KoSIT XRechnung · Last verified: 2026-07-10
All validation rules