Only one StandardItemIdentification can be used per line.

Namespace
cac urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2
Child elements
Card Name Description
1..1 cbc:ID

Item standard identifier
Global Trade Item Number (GTIN) or other standardized identification.

Example value: 1234567891234

0..1 cbc:ExtendedID

Item standard extended identifier
with specific properties, e.g., Item 123 = Chair / Item 123 Ext 45 = brown chair.

Example value: 22114455

Rules
Identifier/Error message Flag
PEPPOL-T120-R003
Each item in a Despatch Advice line SHALL be identifiable by either "item sellers identifier" or "item standard identifier"
fatal
PEPPOL-T120-B45701
Element 'cbc:ID' MUST be provided.
fatal
PEPPOL-T120-B45702
Document MUST NOT contain elements not part of the data model.
fatal