The Uniform Resource Identifier (URI) that identifies where the document is located.

Cardinality
0..1
Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Example value
https://example.com/document.pdf
Rules
Identifier/Error message Flag
EHF-ESPD-REQ-B09801
Document MUST NOT contain elements not part of the data model.
fatal