@JagarlamudiVe There is no OOTB lockout feature available.However if you are using Single sign on, then you can use your SSO provider functionalities to achieve it

@NickWe Instead of calling servlets from filter, the better approach would be to move the logic present in servlet to a service class and call the service in filter.

@SUNITACH1 There is no option to modify or update the report.You will have to generate new report again with required fields.

@Mahesh_Gunaje You can find dispatcher version from the dispatcher logs toosearch for the below/similar entry in dispatcher.log. Here 4.3.6 specifies the dispatcher versionDispatcher initialized (build 4.3.6/apache-2.4-linux-x86_64-ssl1.1)

@varaande You might have taken a backup of AEM server before the upgrade. You can try to restore the same backup to revert to previous version

@Amsalek4 Check if your pages are published. the sitemap generator will only consider published pages.Also ensure that you have set the page property sling:sitemapRoot to true on your target root. 

@sesmic As per your requirement, you can prefer to use servlet instead of sling model and call the servlet when the user performs actions (such as selecting dropdown value)

@KannanCh2 Deny all rule is recommended because it prevents access to sensitive areas of AEM repository.This will prevent sensitive information leakage from AEM repository. This approach enhances security and minimizes vulnerabilities.  

@Mahesh_Gunaje There is no such Dummy API availableYou have to either install Magento in your local or You can check in your organization if there is any Magento sandbox available and use its configuration in your local AEM to test CIF features

@madhukumari A config.preview OSGi configuration folder cannot be declared in the same way a as config.publish . Instead, the preview tier inherits its OSGi configuration from the publish tier’s values.However, You can explicitly define configuration values in environment variables in cloud manager ...