11i Iban field required instead of Account Number

Dear Community,

In Payables when entering bank accounts, fields "Name", "Account use" and "Number" are required.

We would like to modify the form to force users to enter only name, account use and iban.

Is there a "standard" way to do it or shall we personalize the form to set "number" field as not required, set "iban" field as required and fill automatically the "number" field (as it is a required data in ap_bank_accounts_all table) ?

Regards,

Alex