Peppol BIS Billing 3.0 · rule
UBL-CR-001
What does UBL-CR-001 mean? A UBL invoice should not include extensions
Why did my invoice fail UBL-CR-001?
An EN 16931 UBL invoice should not contain UBLExtensions. The core standard defines a fixed semantic model, and extensions carry data outside that model which receivers are not required to understand. Remove the ext:UBLExtensions block unless a specific CIUS/extension explicitly requires it.
Official rule text
A UBL invoice should not include extensions
Common causes
- Toolkit or library emitting an empty UBLExtensions block by default
- Embedding signatures or national extensions meant for a different profile
- Copying a template from a context where extensions were allowed
Related rules
UBL-CR-002 · UBL-CR-003 · UBL-CR-004 · UBL-CR-005 · UBL-CR-006 · UBL-CR-007 · UBL-CR-008 · UBL-CR-009
Check your invoice against this rule
Paste it into the live demo, or call POST /v1/validate. See the quickstart.