If you want to use Google Analytics IDs or a Meta Pixel for your ACE Meetings, all you have to do is add it to your account. Once you have your IDs on hand, the first thing you will want to do is head to your Marketing Settings.
From your left-side sidebar, click on Preferences (the last icon) and then head to Marketing.
Here, you will see two fields for each kind of ID: Google Analytics, or Meta (Facebook) Pixel ID. All that's left is to paste the ID in the right row and save your settings.