An identifier that can be used to reference the attached document, such as an unique identifier.

Cardinality
1..1
Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Identifier
Example value
23423
Business terms
tir77-036, OP-T77-003
Rules
Identifier/Error message Flag
EHF-T77-B07301
Document MUST NOT contain elements not part of the data model.
fatal