I have lots of previous orders that I still have to do PDF invoices for and email to customers.
So far my default site currency is USD, if I change that to AUD, will that have any impact on my previous orders?
At the moment I use Super Orders 2.0 and Zen Cart v1.2.6D, I change the USD value of orders often using Advanced Order Management for discounts etc and when I edit it displays the USD value but when viewing invoice it displays AUD
Also will changing the exchange rate have any impact on the previous orders or is it that for each order the exchange rate used on that day is "locked in" and used again if you edit the order in future?
I just had lots of previous orders I still need to fix up and do invoices for and want to know if changing default currency and currency exchange rates will impact?