R12 Payment with external bank account in ap_checks_all with currency different from currency of pay

We are finding payments with external bank account in ap_checks_all with currency different from currency of payment and invoice, the user could not remember how this happen, we try to reproduce it without success, there is a way in R12 to create an AP invoice or payment for an AP invoice that the currency of external account is diferent from the payment/invoice created and it cause a record in ap_checks_all with this external account?