Pay Vendor in FCY using FCY bought in the past with 2 diff exchange rates, How?

Business Central/NAV User Forum
1

September 5 - Receive Vendor Invoice for FCY1000 (Foreign Currency), 30 days term of payment

September 7 - Because FCY is cheap, we buy FCY800 @ exch rate A

September 12 - We buy FCY200 more at exch rate B

October 2 - We pay vendor FCY1000 (800 at exch rate A + 200 at exch rate B)

Question 1:

When we pay vendor, we can choose the exch rate that we pay, but what happens when the payment comes from FCY that is bought in an earlier period, with more than one exchange rate associated with the funds used to pay the foreign vendor. How does Navision handle this?

Thx.

2

If you have a bank account in FCY (currency that you had bought). Exchange rates are made when you buy exchange currency.
When you apply a payment in that currency it will decrease FCY amount for example in bank account.