For WebLogic Server, you need to update the file mod_wls_ohs.conf to add the logout configuration for SSO.
Here is an example of the file with the /eid/oam_logout_success section added:
LoadModule weblogic_module "${ORACLE_HOME}/ohs/modules/mod_wl_ohs.so"
<IfModule weblogic_module>
WebLogicHost hostName
WebLogicPort portNumber
</IfModule>
<Location /eid/oam_logout_success>
PathTrim /eid/oam_logout_success
PathPrepend /eid/c/portal
DefaultFileName logout
SetHandler weblogic-handler
</Location>
<Location />
SetHandler weblogic-handler
</Location>
The /eid/oam_logout_success Location configuration is special for Studio. It redirects the default Webgate Logout Callback URL (/eid/oam_logout_success) to an application tier logout within Studio. With this configuration, when users sign out of SSO from another application, it is reflected in Studio.