Oracle Commerce Workbench uses a ORA_OC_WBSESSION cookie to maintain a user’s session.

In rare cases it is possible for the cookie name to collide with a cookie of the same name on the same application server. This conflict can occur if you are running your application on an application server on the same host as Workbench and using ORA_OC_WBSESSION for two purposes. In this situation, a user's session may be unexpectedly terminated. To resolve this issue, you can either run the application on another host (that is, a host other than the one Workbench is on), or customize your application server to use a different cookie name (other than ORA_OC_WBSESSION) through custom directives on the specific application server.