3805743 - How does supplier determination work using IBAN and how are supplier bank details auto-populated in SAP Ariba Invoicing?

I uploaded an invoice PDF in SAP Ariba Invoicing and want to understand how the system uses the IBAN((International Bank Account Number or in other words simply the supplier's bank account) extracted from the document to determine the supplier and automatically populate the supplier bank details (Partner Bank Type, IBAN, SWIFT/BIC) in the Payment section.

supplier bank account, partner bank type, payment determination, document extraction, bank account matching, senderBankAccount, banking details, IBAN, SAP Ariba Invoicing, Central Invoice Management , KBA , S2P-CIM-PRC , CIM Invoice Processing , Problem