BT-122 - Supporting document reference
An identifier of the supporting document referenced in the Invoice.
BT-122 - Supporting document reference
An identifier of the supporting document referenced in the Invoice.
Definition
An identifier of the supporting document referenced in the Invoice.
Syntax mapping
Where this term appears in each of the three EN 16931 syntaxes.
| Syntax | Path |
|---|---|
| UBL 2.1 | cac:AdditionalDocumentReference/cbc:ID |
| UN/CEFACT CII | ram:AdditionalReferencedDocument/ram:IssuerAssignedID |
| Factur-X / ZUGFeRD | Factur-X profile: EN 16931 |
The lowest Factur-X / ZUGFeRD profile in which this term is available.
Validation rules for this term
The EN 16931 / Peppol / XRechnung rules that reference this term.
Validate an invoice carrying this term
This term is defined by EN 16931. Check your invoice with the validator that matches your format:
Related terms
Source: CEN EN 16931-1 + CEN/TS 16931-3-2 (UBL) & -3-3 (CII) · Last verified: 2026-07-10
All business terms