Although a video on youtube helps to understand how the new SD-WAN, it is not clear how to properly create a working SD-WAN.
Not many people likes to watch videos. Please provide multiple tools for people to learn such as a KB.
We currently have this document available in the online help: https://docs.sophos.com/nsg/sophos-firewall/18.0/Help/en-us/webhelp/onlinehelp/nsg/sfos/concepts/PolicyRouting.html
We are in the process of updating it, and the updates will be published next Friday.
Hope this helps,
Senior Technical Writer | Documentation
See our online help here: https://secure2.sophos.com/en-us/support/documentation.aspx