Obtain a separate license for each Replication Server Options component.
ExpressConnect for Oracle, Replication Agent, and Enterprise Connect Data Access
ExpressConnect for Oracle, Replication Agent™, and Enterprise Connect™ Data Access are available as a product called Replication Server Options that are available separately from Replication Server. You must have Replication Server to obtain Replication Server Options.
Replication Server Data Assurance Option
Replication Server® Data Assurance (DA) Option 15.6 is available as a separately licensed product for Replication Server and supports Replication Server versions 15.1 and later.