3744645 - One-time vendor invoice duplicate invoice ID validation not triggering.

You create a Non-PO One-Time Vendor (OTV) invoice in SAP Ariba Buying and Invoicing using a Supplier Invoice Number that has already been used on a previously submitted OTV invoice for the same One-Time Vendor supplier

No duplicate invoice number validation error is displayed and the invoice is submitted successfully

The duplicate invoice passes through the approval workflow and is exported to the ERP system

The ERP system creates a single invoice document and returns the same ERP invoice number to both Ariba invoices

one-time vendor, otv, duplicate invoice number, invoice validation, non-po invoice, OneTimeVendorSupplierLookupField, IBanID, BankAccountID, SupplierBankInfo, PaymentBankLocation, OneTimeVendorInvoiceDetail, AllowOneTimeVendorInvoices, unique identifier, iban, duplicate check, invoice reconciliation, erp invoice number , KBA , BNS-ARI-INV-NPO , Non-PO Invoice , Problem