Problem in Campaign

I need help

I’m new in Suite CRM and I want to know how can I make a tracking for opening emails

how can I do that.

I confused

I see the tutorial but did understand how can I make it.

thank you for helping

It’s in the New Campaign wizard.
It’s called “Tracker URL”.

what can I do here :

what is the link should I input?

Let me search that for you: