I have the below scenario.
I have 2 locations which is connected to DC.

Each location has 2 Cisco SD-WAN devices. Each location has 2 Links.

Link 1# MPLS

Link 2# Internet

In Data Center side, I have the network 10.10.0.0/16 
There are multiple /24 network like below.

10.10.100.0/24

10.10.200.0/24

10.10.300.0/24

10.10.400.0/24

Requirement:
1. From Location#1 & Location#2, I need to reach only the below DC network (Not the entire Network of DC)

10.10.300.0/24

10.10.400.0/24

2. The 1st preferred path is Internet. MPLS as backup. 
    In case Internet link fails, the traffic should be via MPLS.

How to achieve this in SD-WAN ?

I want to understand this in high-level like what kind of policies or configurations in SD-WAN can help in achieving this ?

Attached is the diagram for reference.