cbc:ID
An transaction instance must contain an identifier. The identifier enables positive referencing the document instance for various purposes including referencing between transactions that are part of the same process.
- Namespace
 cbcurn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2- Data type
 - Identifier
 - udt:IdentifierType
 - Example value
 TS_1- Business terms
 - tir16-003