This value is the human-readable error description accompanying a failed remote invocation during the background FSM task tracking the policy that controls how long UCS Manager retains VM and vNIC inventory records after they disappear from vCenter. An admin reads cucsVmLifeCyclePolicyFsmRmtInvErrDescr directly, without needing to decode a numeric error code, to understand why a life-cycle-policy background task's remote call to vCenter failed. For example, cucsVmLifeCyclePolicyFsmRmtInvErrDescr might explicitly state a connectivity or authentication problem with vCenter, pointing the admin straight at the VMM endpoint to fix.