ORA-28584

Error: ORA-28584: heterogeneous apply internal error

Causa: The apply slave process encountered an error while trying to apply changes through a gateway to a non-Oracle system.

Acción: Make sure that the apply database link is correctly configured and that the gateway listener and the non-Oracle system are correctly set up and are up and running. If everything is configured correctly and the problem still occurs, then contact Oracle Support Services.