A reference to a previous identifier for an order agreement. Used to indicatete that this agreement is a change to a previous agreement. This is an optional business term but is a required element in the UBL syntax so if no previous order identifier is available use NA.

Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Document reference
udt:IdentifierType
Example value
NA
Business terms
tir110-042