Fortinet SDWAN understanding

[ilan]

Hi,

Am new to Fortinet SDWAN , could please share the step by step working process of fortinet SDWAN, like how site to site communications is happening and what are the process involved to establish the communications. 

[Memo]

kindly i tried to create sd-wan zone in Forti-manger but unfortunately i didn't find it in sd-wan template but i only can create interface member so kindly i appreciate support to send me  how create sd-wan zone