Using correct exchange rate

Hi! An error was made when setting exchange rate, th system instead of converting 670 USD to 589.6 CDN , it uses 58960 CDN which is false. How the correction can be done at this stage ( no payment against that invoice have been made). Thanks

Post a credit memo with the wrong exchange rate, reversing the present invoice and redo the invoice, this time with the correct Exchange Rate. As the initial invoice generates G/L Entries there is no other solution than to reverse your initial invoice. Saludos Nils

Thanks for the help.