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2. UBL Invoice
3. ubl:Invoice
4. cac:AdditionalDocumentReference

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).

Cardinality

0..n

Namespace

cac urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"

Business terms

BG-24

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	ATTACHMENT

Rules

Identifier/Error message	Flag
PEPPOL-EN16931-R006 Only one invoiced object is allowed on document level	fatal
PEPPOL-EN16931-R080 Only one project reference is allowed on document level	fatal