European foundation
Most relevant layer: EN 16931
EN 16931 is the shared semantic foundation behind many European e-invoicing processes. It helps define structured invoice information, but it does not replace country-specific rules, CIUS, profiles or recipient requirements.
Example
EU-wide, with national implementations and recipient rules.
Relevant terms
- EN 16931
- CIUS
- UBL
- CII
- Validation
Check carefully
Do not treat EN 16931 as complete country compliance. National implementations, platforms and recipient rules still matter.
Next step
First clarify which countries, recipients, formats and transmission routes are relevant in your process.