scope:

This CEN Technical Specification (TS) contains the mapping between the semantic data model of an electronic invoice (EN 16931-1) and the following syntax: UBL 2.1. For each element in the semantic model (including sub-elements or supplementary components such as Code List identifiers) it is defined which element in the syntax is to be used to contain its information contents. Any mismatches between semantics, format, cardinality or structure are indicated. Any rules to be followed when using the specific syntax are stated informally in this TS. Together with this TS a set of validation artefacts is published, including formalisation of the rules. In addition, the deliverable shall unambiguously define the code lists and, where applicable, the subset of codes to be used for each coded element in the model of EN 16931-1 when using the UBL 2.1 syntax as defined in CEN/TS 16931-3-2. The deliverable must guide the user how and where to apply for additions to these code lists. It will be issued as an annex to the existing text of CEN/TS 16931-3-2:2017