CEN-EN16931 Schematron rules define automated validation constraints for European e-invoices to ensure compliance with the CEN EN 16931 semantic data model. This is to verify data consistency, mandatory business rules, code lists, and tax logic required for legally valid cross-border electronic invoicing within the EU.
Peppol EN16931 rules extend the core CEN EN 16931 e-invoicing standard with additional interoperability and network-specific requirements mandated for Peppol participants. These rules ensure consistent business semantics, code lists, and trading compliance for cross-border document exchange within the Peppol network.
Tax Data Document Choreography data elements.