Hi @Momen-Kh , I've undertaken this task previously and it was pretty labour intensive but gave us and the customer an opportunity to review their existing ruleset and perform a clean up operation. Managed to reduce their ruleset significantly in the process and gave us a better understanding of their environment.
There are no toolsets available to ingest the Forti rules and output to the Meraki MX's. API could be the way forward.
Darren OConnor | email@example.com https://www.linkedin.com/in/darrenoconnor/
I'm not an employee of Cisco/Meraki. My posts are based on Meraki best practice and what has worked for me in the field.