I just opened our current data with ACCPAC Plus OE 6.1B. I can open the tax groups and click on modify. When I select one of the Tax Tables then go to Edit it says, "Incorrect Procedure. Cannot modify Tax Tables until Day End Processing is completed and the Tax Summary is completed and cleared." I have already completed OE Day End and printed and cleared the Tax Summary. The issue remains with 2 Credits entered in 2020 with a Cost Status "NO". I said Invoices before, but they are actually Credits that we created to try to correct the problems with the Invoices.

After discussing this with someone in my office today they pointed out that I may not have lost all my data had I unchecked the 3 items the "Purge from Current" section. I suppose I may have found my missing data in Historical if I had looked. Maybe I'll give this another try tonight with "Purge from Current" unchecked.

It worked. :-)