BEAst: Line number (T0051). Peppol: Identifies the Line Item assigned by the buyer, the identifier must be unique within the order.

Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Identifier
udt:IdentifierType
Example value
1
Business terms
tir01-120
Rules
Identifier/Error message Flag
PEPPOL-T01-R001
Each order line SHALL have a document line identifier that is unique within the order.
fatal