| ERROR | 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 |