Is there a way to create a forn that shows up after the 3rd page a customer visits?

Hi @Marcamilleri, welcome to the community.

Although you can set the delay of 8 seconds, there’s not a direct way to have it popup up on the “3rd page visit.” You might want to consider some type of URL matching (example, on a collection page or a product page, etc).  

However, if you do have technical resources available, you can create custom code that can invoke the popup using the “Custom Trigger” option. Its implementation is a bit out scope here, but the idea is to keep track of “page view count” in a session or cookie and when/if it hits the 3rd page, you call the function to show the popup. The technical reference for Custom triggered popup/flyouts is here:

• Custom trigger a popup or flyout form

Alternatively, there are some third party Klaviyo Tech Partners that have Popup and email capture tools that might have more robust capabilities if you want to go that route.  Here’s a list of Email Capture tools to consider:

• Klaviyo Partners - Email Capture 

Hope that helps!