Verifying the performance SLA on a spoke FortiGate
On the spoke, verify the performance SLA is automatically created for the hub FortiGate by going to Network > SD-WAN and clicking the Performance SLAs tab:
Network Security 
Network Security
NOC & SOC Management
Enterprise Networking
Business Communications
Zero Trust Access 
Cloud Security 
Hybrid Cloud Security
Cloud Native Protection
Web Application / API Protection
SAAS Security
Security Operations 
SOC Platform
Advanced Threat Protection
Endpoint Security