It would be useful to have a button to press to refresh information such as the paid flag on an invoice in Xero. This could be accompanied by a date at which the data was last updated as some fields get imported hourly and not instantly.
The paid flag is imported within the next 15 minutes after it has been paid. We are unlikely to add a button to trigger the integration directly. The import runs used to be 60 minutes so hopefully this change to 15 minutes will be suffice.