This OID is a TruthValue flag indicating whether this policy destination class is permitted to overwrite existing settings on matching objects, rather than only filling in unset fields. An admin checks this flag before relying on a policy to enforce a setting, since a false value here means manually configured values on target objects will be left alone even if they conflict with the policy. For example, cucsPolicyPolicyDestClassOverwrite set to true explains why previously customized settings on a matching object were replaced the next time this policy's destination class was applied.