What I feel I am unable to search my existing alert, instead of it search option visible in Action manager instead only
Could your browser be zoomed in to far? Maybe try resetting the zoom by "CNTRL 0" or zooming out by "CNTRL - ". The search bar should be in the grey area directly next to the "MANAGE ANONMALY-BASED-ALERTS" button. I'm on 2023.4.2 and have the Search box.
There's also a chance (rare and I can't remember the version at the moment) that if you don't have sufficient rights to alert management, you may not be able to see this.
Hahaha, Zoom 100---->90% works thanks
Excellent!