A unique identifier for the individual line within the Invoice.

Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Identifier
udt:IdentifierType
Example value
1
Business terms
BT-126
Rules
Identifier/Error message Flag
BR-21
[BR-21]-Each Invoice line (BG-25) shall have an Invoice line identifier (BT-126).
fatal