"heterogeneous apply internal error"
*Cause: The apply slave process encountered an error while trying to
apply changes through a gateway to a non-Oracle system.
*Action: 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, contact Oracle customer support.
errors 28590 - 28599 are reserved for the HS agent control utility