It should be possible to specify the identifier or identifiers for the party.

Cardinality
1..1
Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Example value
123456789
Attributes
Use Name Description
O @schemeID
Rules
Identifier/Error message Flag
BII2-T58-R007
A catalogue rejection sending party MUST contain the full name or an identifier
fatal