Currently, the GTM script is added within the <head> section on all the pages of our site. So, naturally, when I add tags to the GTM, they are all added to the <head> section.
However, it seems like for certain pixel conversion script snippets, they need to be added outside of the section or within the section.
For instance, I need to add <script>fbq('track', 'Purchase');</script> right after the tag.
And for Google's conversion pixel, I need their snippet within the <body> section.
How can I control the placement of the tags in GTM?
It is not possible to control the placement of the tags in Google Tag Manager. It is possible to control the execution of the tag.
What I would suggest for Facebook Conversion pixels is use a custom HTML tag. Insert the code to your pixel there and wrap the pixel code in HTML tags.
For example:
<html>
<!-- Facebook Pixel Code -->
<script>
!function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
document,'script','https://connect.facebook.net/en_US/fbevents.js');
fbq('init', 'XxXXxXXXXXXXX'); // Insert your pixel ID here.
fbq('track', 'PageView');
</script>
<noscript><img height="1" width="1" style="display:none"
src="https://www.facebook.com/tr?id=XxXXxXXXXXXXX&ev=PageView&noscript=1"
/></noscript>
<!-- DO NOT MODIFY -->
<!-- End Facebook Pixel Code -->
</html>
More instructions can be found here: [https://www.facebook.com/business/help/1021909254506499][1]
Then you can set the trigger to fire on pageview, DOM ready or window loaded. When the tag loads via GTM it doesn't mean it executes. By setting the