The sellers identifier for the item. A product must be identified with either the sellers item identifier or the standard item identifier, or both.

Cardinality
1..1
Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Example value
222222
Rules
Identifier/Error message Flag
BII2-T19-R020
An item in a catalogue line MUST be uniquely identifiable by at least one of the following: - Catalogue Provider identifier - Standard identifier
fatal