Uncaught ReferenceError: Klaviyo is not defined

Hi @Brian Turcotte!

I’m having a similar issue.

I inject the two snippets using two tags in Google Tag Manager:

1) Klaviyo tracking, on all pages:

<script
  type="text/javascript"
  src="//static.klaviyo.com/onsite/js/klaviyo.js?company_id=MyKey"
></script>

2) Klaviyo tracking logged users, only on the pages where the user is logged:

<script>
  klaviyo.push(['identify', {
    '$email' : "MyEmailVariable"
  }]);
</script>

I’ve made sure that the second tag is fired after the first.

The issue I’m having is that the console returns the error “Uncaught ReferenceError: klaviyo is not defined”.

What am I doing wrong? I also saw that the event tracking snippet I use for a specific page view is working correctly:

<script type="text/javascript">
   var _learnq = _learnq || [];
   _learnq.push(["track", "Network viewed"]);
</script>

 I see the difference is the presence of _learnq and not of klaviyo, but I also saw on the API reference that the new versions do not use learnq.

Thanks for any help!

P.S.: I’m using GTM because I’m working on with a custom platform and making changes to it involves a long time.

Hey there @Brian Turcotte!
 

I am encountering a similar issue :/. After reading through the thread and reading through the associated documentation that you sent, I am still at an impasse.

For context, I am loading Klaviyo via GTM (as seen below)

This tag is sent to fire once per page on page view.

On a specific route on my website, I want to track a custom metric using klaviyo.track([...]). Given that this event (loading the Klaviyo Script) is asynchronous, I have setup the following code block:

if (typeof klaviyo !== "undefined") {
    klaviyo.push(["track", "Checkout Started", cartMetaData]);
  } else {
    setTimeout(() => {
      klaviyo.push(["track", "Checkout Started", cartMetaData]);
    }, 1500);
  }

The problem is that despite this 1.5 second waiting period, I am still getting a ReferenceError.

Outside of increasing the timeout or converting this to a while loop in which I poll Klaviyo for it to become ready, what can I do to fix this issue?

Gratefully,

Kamal