Your company accountant will love this feature. The audit trail provides a summary of all the transactions that have been entered in your QuickBooks company file, who entered them, and when they were entered. The Audit Trail feature is automatically turned on, so you don't have to do anything to start using the feature. The Audit Trail works completely in the background, keeping track of all the transactions. When you're ready, you can produce a report that shows exactly what has been going on in your company.