Solution : https://service.sap.com/sap/support/notes/436909 (SAP Service marketplace login required)
Key words :
type optional pass valuei_banks, create function module maintain_iban_from_data, create function module read_iban, short texte_iban type, bnka-banks xi_bankl, bnka-bankl xi_bankn, sy-datum xi_bkref, remote-enabled module, reguh_bf-zbnkn xi_bkont, reguh_bf-zbkon xi_iban
Related Notes :
660794 | RFDKVZ00 / RFKKVZ00: IBAN is missing |
546721 | IBAN: Bank country and ISO code of IBAN are different |
537266 | READ_IBAN: Performance |
521576 | FAQ: Use of IBAN |
503396 | IBAN mass generation |
429543 | Long account numbers and IBAN are truncated |