When creating payment voucher in foreign currency, the fields payment_rate and payment_rate_currency_id are displayed.

The help describes payment_rate as rate between the voucher currency and payment rate currency.

My Company currency is EGP. When I have an invoice in USD and try to make Payment in EUR, invoice amount in EUR is always shown in the current rate. Changing payment_rate (USD) does not affect the value.

When I tried to validate, I got an exception "The selected account of your Journal Entry forces to provide a secondary currency...."