Multiple sessions in Product Designer

If you have an existing session in Product Designer and then attempt to log in with the same user name in a different browser instance, your existing session is disconnected.

It is possible to maintain multiple Product Designer sessions in the same browser instance. However, if you do so, conflicts could occur if you commit changes in multiple browser tabs. Guidewire recommends that you use only one of the tabs for committing changes (edit-only), and use the other tabs for viewing changes (read-only).