Solution : https://service.sap.com/sap/support/notes/1643868 (SAP Service marketplace login required)
Key words :
bank number lenght recommended, terms bosnia-herzegovina, country specific settings, bank master data, bicplusiban directory files, bicplusiban directory, data provided, iban maintenance, work properly, convert_bank_account_2_iban_baconvert_bank_account_2_iban_siconvert_iban_2_bank_account_baconvert_iban_2_bank_account_ficonvert_iban_2_bank_account_siconvert_iban_2_bank_account_tn reason
Related Notes :
| 1585003 | How to enter a long account number |
| 1012293 |