A group of business terms providing information about additional supporting documents substantiating the claims made in the Invoice. The additional supporting documents can be used for both referencing a document number which is expected to be known by the receiver, an external document (referenced by a URL) or as an embedded document, Base64 encoded (such as a time report).

cac urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
Business terms
Child elements
Card Name Description
1..1 cbc:ID

Invoiced object identifier, Supporting document reference
An identifier for an object on which the invoice is based, given by the Seller, or the identifier for the supporting document.

Example value: AB23456

0..1 cbc:DocumentTypeCode

Document type code
Code "130" MUST be used to indicate an invoice object reference. Not used for other additional documents

Default value: 130

0..1 cbc:DocumentDescription

Supporting document description
A description of the supporting document, such as: timesheet, usage report etc.

Example value: Time list

0..1 cac:Attachment


Identifier/Error message Flag
Only one project reference is allowed on document level