Client database written eons ago--finally convinced them to install 2016 version so I could convert front and backend to accdb. Total of 5 users. Suddenly they can't start a new batch of invoices--"Exclusive Access of the MS Access Database denied." At the time of error she was only one using the db. After some research I turned off Compact on Close, unchecked name AutoCorrect info and Perform name AutoCorrect. This was written so long ago that external macros were used, so I changed that to vba and got rid of the macros on the form in question. Still having the same problem. Any ideas what to do next? Thanks!