Hello@Oswl,

Thanks for sharing your question with the Klaviyo Community!

Were you hoping to trigger your Facebook Tracking Pixel using a Klaviyo Signup Form?

If this was your goal, then yes, it would be possible to trigger a Facebook tracking pixel each time the Klaviyo signup form was filled out and submitted.

To accomplished this, I would recommend reviewing our Adding Custom JavaScript Events to Forms: General Structure of an Event Listener Help Center Article to get a better understanding of where you would need to add the custom Javascript code. Once you have identified where you should add it, the code you would add would look similar to the example below:

<script>
window.addEventListener("klaviyoForms", function(e) { 
  if (e.detail.type == 'submit') {
 // add Facebook tracking pixel code here
  }
});
</script>

Since this would be a custom connection, I would suggest working with a developer or finding a Klaviyo partner to further assist you in adding this JavaScript code to trigger your Facebook Pixel. 

I hope this helps!

David