What is the difference between Synchronous and Asynchronous events while monitoring UiPath activities?

Can someone explain the difference between Synchronous and Asynchronous mode while monitoring UiPath activities?
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Hi,

Did you go through the video from uipath about user events and agent-assisted Automation in uipath, it there in youtube.

Asynchronous -> Process event handler once the action is executed.
Synchronous -> Process event handler before the action is executed.

For more - Check this Uipath Video