VMware SDDC Manager
VMware NSX
NSX service certificates are user-facing for services such as load balancer, VPN, and TLS Inspection.
The policy API manages service certificates. Non-service certificates are used by the platform for tasks such as cluster management. The management plane (MP) or truststore APIs manage non-service certificates.
NO Impact for LoadBalancer/Virtual Servers when replacing NSX Manager appliance certificates.
https://techdocs.broadcom.com/us/en/vmware-cis/nsx/vmware-nsx/4-2/administration-guide/certificates/types-of-certificates.html