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2. UBL Credit Note
3. ubl:CreditNote
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 or project reference An identifier for an object on which the invoice is based (with DocumentTypeCode=130), given by the Seller, the identifier for the supporting document or the project reference identifier (DocumentTypeCode=50). Example value: AB23456
0..1	cbc:DocumentTypeCode	Document type code Code "130" MUST be used to indicate an invoice object reference and code "50" for project reference. Element is not used for other additional documents Example 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-R080 Only one project reference is allowed on document level	fatal
DE-R-022 Attached documents provided with an invoice in "ADDITIONAL SUPPORTING DOCUMENTS" (BG-24) shall have a unique filename (non case-sensitive) within the element ″Attached document″ (BT-125).	fatal