The match for duplicate data functionality is used to generate matches for duplicates of all non-system base object columns. These matches are generated when there are more than a set number of occurrences of complete duplicates on the base object columns. For most data, the optimal value is 2.

Although the matches are generated, the consolidation indicator remains at 4 (unconsolidated) for those records, so that they can be later matched using the standard match rules.