Buyer name The full name of the Buyer. About ID IBT-044Cardinality 1..1Section SharedName Buyer nameSyntax binding ubl:Invoice / cac:AccountingCustomerParty / cac:Party / cac:PartyLegalEntity / cbc:RegistrationNameRules IBR-007: An Invoice MUST contain the Buyer name (ibt-044).IBR-102: Buyer name (ibt-044) MUST occur maximum once.