A unique identification of the Invoice. The sequential number required in Article 226(2) of the directive 2006/112/EC [2], to uniquely identify the Invoice within the business context, time-frame, operating systems and records of the Seller. No identification scheme is to be used.

Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Identifier
udt:IdentifierType
Example value
98670AE
Business terms
BT-1
Rules
Identifier/Error message Flag
BR-02
[BR-02]-An Invoice shall have an Invoice number (BT-1).
fatal