EN 16931 (CII), no CIUS

Format id: en16931-cii
Countries: EU-wide
Status: in active use
Parser: cii family, converts to canonical JSON

Bare EN 16931 CII, or an unknown CIUS of it.

Where you will receive it

BG: en16931-ubl / -cii, peppol-bis3. No exchange mandate yet; B2B proposed for 2028.
FR: facturx, fr-ctc-ubl, fr-ctc-cii, en16931-ubl / -cii. All businesses must receive from 1 Sep 2026. Factur-X BASIC WL accepted until Sep 2027. CII D22B.

Mapping notes for the `cii` parser family

Phase 1. Covers: Factur-X/ZUGFeRD 2.x all profiles, XRechnung CII, NLCIUS CII, France CII. D16B and D22B share the root namespace. MINIMUM/BASIC WL have no lines.

The same parser family handles the formats listed in Build order and mapping notes.

Check it

Drop a EN 16931 (CII), no CIUS file into the browser converter to get canonical JSON; nothing is uploaded.
Conformance checklist: fixtures, real samples, mapping source and validation for this format.
Output shape: canonical-invoice.v1.schema.json.