This feature is available only for Gen 7 and Gen 8 firewalls with an Advanced license.
The Firewall View | Monitor > Logs > Change Logs page shows the logs for changes made locally in a firewall.
The Change Logs feature is implemented for the limited features listed on the Supported Settings on the Firewall View | Monitor > Logs > Change Logs page .
You can create a rule to schedule the local change report on the Firewall View | Home > Reports > Rules or Manager View | Home > Reports > Rules page. For more information, refer to Creating a Rule for Change Reports.