Rescheduling Changes added to Shopify order

It would be very helpful to have the shopify order update the date in the order when a customer reschedules. Right now, the original shopify order only has the original date. This makes it complicated when a customer needs a shopify reciept with the correct date of their appointment in it. So if there was a better way for Appointo to be able to update shopify orders when appointments are rescheduled or even canceled.