In a multi-instance environment, after you generate the signed certificates for Site Recovery Manager and vSphere Replication, replace and update the certificates on the connected management components in the region to maintain secure connection.
For information on replacing the certificate of Site Recovery Manager, see Replace the Site Recovery Manager Certificate for Site Protection and Disaster Recovery for VMware Cloud Foundation.
For information on replacing the certificate of vSphere Replication, see Replace the Certificate of vSphere Replication for Site Protection and Disaster Recovery for VMware Cloud Foundation.