Oracle E-Business Suite has their own listener process which works differently than the HA-Oracle listener. The Sun recommendation for implementing E-Business is to use the HA-Oracle agent to manage the CMG Listener.
This is an issue since we have to change the default behaviors of HA-Oracle for ALL Oracle resources, not just the CMG listener using the /opt/SUNWscor/.use_su facility. We also had to set the owner of the CMG lsnrctl and oracle files to the user we want to run the CMG listener as since setting the ORACLE_OWNER in the *_ha.env file was not being honored.
These customizations are a concern since running autoconfig as part of routine maintenance could revert the file ownership. Also, changes made to the HA-Oracle agent could affect if the .use_su functions properly for E-Business Suite CMG.