Troubleshooting: Storefront Id not found in the request nor in the session error

After upgrading from Release 9.3 to 9.4, and attempt to access Sterling Configurator (deployed as WAR), an error message is displayed.

Problem

After upgrading from Release 9.3 to 9.4, and attempt to access Sterling Configurator (deployed as WAR), you might encounter "Storefront Id not found in the request nor in the session" error.

Solution

After performing the upgrade, clear the browser cache and cookies.