OK I have Sage 50 Pro Accounting 2020 I'm just about to start entering all the details etc but I'm confused as to what to put as the fiscal start and end date, the problem is I purchased inventory for this company back in July 2019 so in a sense I have two years of entries to do, my question is can I enter 2019 as historical entries,  How far can I go back and how many entries can be historical