Explanation
According to the FortiManager Administration Guide, provisioning templates are used to configure FortiGate
devices in a consistent and efficient way. There are different types of templates, such as system, IPsec,
SD-WAN, certificate, and CLI templates. Some characteristics of provisioning templates are:
You can apply a system template and a CLI template to the same FortiGate device, as long as they do
not have conflicting settings1.
A CLI template can be of type CLI script or Perl script. A CLI script template contains FortiOS CLI
commands, while a Perl script template contains Perl code that can generate FortiOS CLI commands2.
A template group can include a system template and an SD-WAN template, as well as other types of
templates. A template group is a collection of templates that can be applied to multiple devices at once3.
A template group can contain CLI templates of both types, as long as they do not have conflicting
settings2.
Templates are applied in order, from top to bottom. The order of the templates in a template group
determines the order in which they are applied to the devices3.

SD-WAN members can be manually ordered by changing their sequence number (A), which allows administrators to prioritize the interfaces according to the routing requirements. Also, VLAN interfaces can be used as SD-WAN members (C), providing flexibility in network design and the use of existing VLAN infrastructure within the SD-WAN setup.

Study Guide 7.2, page 176.