The default currency on purchase orders is USD. Not all organizations that utilise Service Desk for purchase orders operate in USD. Often those who do the purchase orders overlook the currency and forget to change it from USD to CAD (the currency relevant to my organizations and country) and the purchase order does not end up matching the invoice and we have to go back and review and fix and resend the PO. If we are able to set the default currency for our instance of service desk, we would reduce the margin of error and the time it takes to review and fix because we can run under the assumption that all costs are in CAD.