An invoice in the client's currency

Your books stay in your company's currency, but a client may pay in another.

1. Sales → New sale, Complete sale, choose the customer.
2. Pick the Invoice currency, e.g. KES, and check the Rate, e.g. 1 USD = 129 KES. Type over it if today's real rate differs.
3. Prices fill in shillings; In your books shows the dollars. Complete the sale. The invoice, its link and the email read in shillings.

When the client pays, use Accounting → Register payment with the currency and that day's rate. Kaydro books any exchange gain or loss. Quotations, orders, drafts, repeating invoices, the till and returns stay in your own currency.