Fortigate Vm License Trial [better] -

You can build a complex routing or SD-WAN topology in a lab to verify logic before applying it to physical hardware. Upgrading to a Full License

There is no official technical support (TAC) for trial licenses. Users must rely on the Fortinet Community forums and documentation. How to Get Your FortiGate VM Trial License fortigate vm license trial

. The system will download the license and automatically reboot. Fortinet Document Library Via the Command Line Interface (CLI): You can build a complex routing or SD-WAN

If you need a "paper" to cite or follow for a project, the official Fortinet documentation library is the gold standard. How to Get Your FortiGate VM Trial License

If you are looking for a more permanent lab solution, you might want to look into or explore the Permanent Trial Mode (available in versions 7.2+) which has stricter feature caps but no expiration date.