To enable notifications on the platform, you can use the inbuilt 'Notifications' feature from the MT4/MT5 platform by navigating to the 'Options' window.
You may also use the Alarm Manager offered by PU Prime as one of its advanced trading tools. For the inbuilt feature, go to the 'Tools' menu, and click on 'Options'. Now switch to the 'Notifications' tab and update the settings as required.