fatalPeppol BIS Billing 3.0profileCIIUBL
A buyer reference or purchase order reference MUST be provided.
Neither a buyer reference (BT-10) nor a purchase order reference (BT-13) is given. Peppol needs at least one so the receiver's system can match the invoice.
Add BT-10 (UBL cbc:BuyerReference) or BT-13 (OrderReference/cbc:ID). If the buyer gave you a reference, cost centre or Leitweg-ID, that is BT-10; if you are invoicing against a purchase order, that is BT-13.
CII — context ram:ApplicableHeaderTradeAgreement
ram:BuyerReference or ram:BuyerOrderReferencedDocument/ram:IssuerAssignedID
UBL — context ubl-creditnote:CreditNote | ubl-invoice:Invoice
cbc:BuyerReference or cac:OrderReference/cbc:ID