After you configure your change-synchronization groups and trails following the directions in this chapter, see Instantiating Oracle GoldenGate Using Initial Load to prepare the target tables for synchronization.

An initial load takes a copy of entire source tables, transforms the data if necessary, and applies it to the target tables so that the movement of transaction data begins from a synchronized state. The first time that you start change synchronization should be during the initial synchronization process. Change synchronization keeps track of ongoing transactional changes while the load is being applied.