SD-WAN Application Aware Routing

[RS19]

I have the below scenario.
I have SD-WAN in 3 sites.

Site-1 : VPN100

Site-2 : VPN200

Site-3 : VPN300

All the sites have MPLS & Internet as the transport link.

At present there is Application route policy configured via Centralized policy

- All traffic 1st preference via MPLS & backup via Internet 

This is applied to all sites 

My requirement:
Only For Site#3, VPN300 I want to create additional application route policy
Destination Prefix : 10.10.10.0/24
1st preference : Internet
2nd preference : MPLS

Is it possible to achieve without changing the existing policy only by creating a new policy ?
Pls let me know how to achieve this ?

[RS19]

I was trying the configuration.
I created new policy only for Site 3 to have Internet as primary & MPLS as backup.  Below is the policy output.
The new policy is applied below the existing policy. The existing policy is configured for all sites & all traffic to use MPLS as 1st

So in this case how will the 2nd policy be effective ?

apply-policy
site-list Spokes-list
control-policy control_1189416248 out
app-route-policy _Corp-VPN-List_Outlo_-2025571353                : Existing policy applied to all sites (1st MPLS & Backup Internet)
!
site-list Site_3
app-route-policy _Site3_Internet                                                   : New policy Applied to only Site3(1st Internet & Backup MPLS)
!
!

[Kanan Huseynli]

Hi,

you cannot have overlapping site-id.

You should remove site3 from "Spokes-list". Or you may configure new list ,example, "spokes-wo-3" and change list name in the initial policy. Then you can create new one and apply that new app-route policy to site3 only.

HTH,