Thanks for your reply. I have tried what you suggested, and alas, it did not work.  When I went to Sales, and then clicked on the Unbilled Activity (which defaults to the past 365 days), and click on the blue tile, I get a list of expenses which pop up.  when I choose 'Batch Actions', I don't have a Delete choice, only a 'create invoice' choice.  When I go to the Expenses section, and click on the blue tile for unbilled activity (which in this case, shows $0), no Vendors appear.  When I just click on the vendor list, I am unable to inactivate because I have unbilled charges.  It's a vicious cycle.  I think I am just stuck with a bunch of billable expenses that were already billed and paid for, and a 25 year long Vendor and Customer list.