FortiGate Security 7.2 Study Guide (p.310): "Then, FortiGate scans packets for matches, in this order, for the application control profile: 1. Application and filter overrides: If you have configured any application overrides or filter overrides, the application control profile considers those first. It looks for a matching override starting at the top of the list, like firewall policies. 2. Categories: Finally, the application control profile applies the action that you've configured for applications in your selected categories."