Obtain a separate license for each Replication Server and Replication
Server Options component.
Replication Server Options
Replication Server Options may consist of a Replication Agent™ and either Enterprise Connect™ Data Access (ECDA), or ExpressConnect (for Oracle or HANA DB). You must have Replication Server to obtain Replication Server Options.
Replication Server Data Assurance Option
Replication Server Data Assurance (DA) Option is available as a separately licensed product for Replication Server and supports Replication Server versions 15.1 and later.