Use change history to facilitate the auditing of changes to the source tables. A change history target differs from a replication database target in that a change history target maintains a record of every change that occurs to a source database, rather than simply maintaining a mirror of the current state of the source database. While regular replication overlays current target data with change data, change history inserts the change data to the target as a new record. The old data is preserved as a step-by-step record of change. The historical data can be queried and analyzed for such purposes as data mining or resolving customer disputes.
Please refer to the SharePlex Installation Guide.