@Sam-I-Am For sure - thank you again. I started on the System Notes search and originally just looked for Accounting Period changes by administrators, as @alien4u was saying that there would be a history of that in the system notes. I'm not sure how to find the records that changed after the period was reopened though. And I think some of these changes happen(ed) through csv imports, others through adjusting invoices or transactions. When you said to do a search for the details, what do you mean? I think I'm missing something basic here.