Hi,
according to the documentation https://help.mikrotik.com/docs/pages/vi ... d=26476608 this is how to setup WAN Backup. Unfortunately it doesn't work for RouterOS7.04.
I managed to set up a new routing table and was able to set a routing-mark with the name of the new route on my traffic, but I don't know how to implement a special route for the marked traffic.
This is how you would do it in ROS6: gives an expected end of line error because "routing-mark" is not an accepted command anymore.

It has changed from routing-mark to routing-table

please change to correct documentation for Failover (WAN Backup)
https://help.mikrotik.com/docs/pages/vi ... d=26476608