Abu Syaid

Install Google Tag Manager on your block theme (like YITH Wonder) via FTP:

1️⃣ Go to: /wp-content/themes/YITH-wonder/functions.php
2️⃣ Add this code:

phpCopy

Edit

add_action('wp_head', function() {
?>
<!-- Google Tag Manager -->
<script>(your GTM head code here)</script>
<?php
}); 

add_action('wp_body_open', function() {
?>
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-XXXX"
height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<?php
});

✅ Replace GTM-XXXX with your GTM ID.
✅ Save → Clear cache → Test.