collection-vcenter-error.log shows the following error that shows the expiry date of the SRM certificate.ERROR | ter collector thread | com.vmware.um.vccollector.VCCollector | vCenter collector | SRM stage raised exception com.vmware.um.collector.CollectionError: SRM collection failed on server # failed due to Collection error: Unknown Failure HTTP transport error: javax.net.ssl.SSLHandshakeException: NotAfter: Day MM DD HH:MM:SS UTC YYYY :: https://<HOSTNAME>:443/drserver/vcdr/extapi/sdk