How can I change the currency in QuickBooks Online Purchase Orders?
Provided that your Intuit account features multi-currency support and you managed "Currencies" in the advanced settings of your QuickBooks Online Organisation, you can specify a different currency (other than your home currency) for a Supplier:
During the Supplier creation procedure, select the currency in which you will pay this supplier:
During Purchase Order creation in ApprovalMax, the system will then use the currency specified for the Supplier as the base and convert the amount into your home currency using the exchange rate set in the QuickBooks Online settings for "Currencies":
Please note: once a currency has been selected for a Supplier, it will not be possible to change it again.