To use Oracle Flashback with Replication Agent:
The user ID for pds_username must have select permission on SYS.RECYCLEBIN$.
For Replication Agent to replicate the Oracle PURGE DBA_RECYCLEBIN command, the user ID for ddl_username must have sysdba permission and should be suffixed with "as sysdba". For example:
ra_config ddl_username, "myuser as sysdba"
go
Replication Agent will replicate Flashback operations from Oracle 10g and 11g databases but not from earlier versions of Oracle.