To uninstall P6 EPPM Web Services from a WebLogic server:
Do one of the following:
On Windows platforms, from the Start menu, choose Programs, app name, Uninstall app name.
On Unix platforms, run the uninstall.sh script in the weblogic_home/user_projects/domain directory.
If you will use the same wshome directory for the new deployment, delete the existing WAR or EAR file from that directory to avoid conflict with the new p6ws.ear file.