An identifier assigned by the buyer to identify the item.
Used for buyer's internal catalog and procurement systems.
Optional according to EN 16931-1.
/Invoice/cac:InvoiceLine/cac:Item/cac:BuyersItemIdentification/cbc:ID/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:SpecifiedTradeProduct/ram:BuyerAssignedIDBUYER-123CLIENT-PROD-456INTERNAL-789AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA✗ InvalidOur AI-powered Invoice Converter automatically handles all XRechnung requirements, including proper field validation.