This is a true/false flag indicating whether this duplicate-check scope was generated automatically by UCS Central's own internal logic, as opposed to an admin-triggered action. UCS Central raises one of these when it needs to verify that an identifier — such as a service-profile name or a pool ID — won't collide with one that already exists elsewhere, most commonly while registering or merging a UCS domain into UCS Central. A value of 'true' is what you'd see for a check UCS Central runs on its own during routine domain synchronization; 'false' would indicate the check was set off by a specific admin operation such as merging a domain.