This Gauge32 value is the numeric error code returned by the remote endpoint involved in the FSM run for one execution of this log-export policy's scheduled export job, when that remote step failed. A non-zero code tells an admin the failure originated on the far end of the operation (such as a remote server) rather than inside UCS Manager itself. For example, an admin checking whether last night's scheduled log export actually ran to completion, and if the remote side rejected the request this field would carry the error code it returned.