To simplify guest account creation, you can create an admin account that is only used for guest user management. This allows new accounts to be made as needed without requiring full administrative access to the FortiGate. In this example, the account is made for use by receptionist.
To create the guest management account, go to System > Administrators and create a new account.
Set a User Name and set Type to Local User. Set and confirm a Password.
Enable Restrict admin to guest account provisioning only and set Guest Group to the WiFi guest user group.