A reference that uniquely identifies a contract that relates to this transaction.

Cardinality
1..1
Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Document reference
Example value
Contract-01
Business terms
tir19-028
Rules
Identifier/Error message Flag
EHF-T19-B01301
Document MUST NOT contain elements not part of the data model.
fatal