Is there a way to add a conversion column for foreign currency and set the preference for CAD rather than USD?

You can set your default currency to CAD in Your Profile either in the Veryfi mobile app or web portal (hub.veryfi.com).

Every time you scan a receipt in a different currency (other than your default currency) Veryfi uses the exchange rate as of the date of the submission. You can always change the exchange rate inside the Veryfi app in receipt details.