Few customers will perform customizations to the Module Tabs in the configurations and get below validation error.
SuccessFactors Learning Management System (LMS) - All Supported Versions
Reproducing the Issue
Module tab: you can affect the underlying Struts actions in the administrator interface through module tab configuration.
In Start of the navigation path System Admin > Configuration >Module tab .
Since few Module tabs will have JAVASECURITY filter codes enabled, LMS won't allow the admins to change any available settings.
Follow the below navigation steps :
System Admin > Configuration > System Configuration > WEB_SECURITY and set the below property to false.
NOTE : Once you set the above property to false, LMS will allow admins to customize the Module Tabs. Once the changes are saved, re-enable the property to true as shown below.