uniqueRecordsLoaded

The number of de-duplicated processed records across all runs, excluding deletion-related records. Duplicates are determined by the field marked as UNIQUE_ID in your schema mapping. Records sharing the same value in this field are considered duplicates. For example, if you specified "customer_id" as a UNIQUE_ID field and had three records with the same customer_id value, they would count as one unique record in this metric.