Can I prevent more than one popup from being shown to a user?

You can utilize the Actions section within your popup to ensure only the current popup is visible by closing all other visible popups.

To do so go into your campaign settings > Actions Panel > click "Add Action" and set it as seen below:

• Set an action label
• Select "Before Open" from Event
• Select "Close all opened Popups" from Action
• Click Save to save your action
• Save your campaign

Now, whenever this popup appears, it will automatically close all other opened popups.