@florian_perl Thanks for getting back. Yes, I have added the optimize script in utag sync. <!-- Global site tag (gtag.js) - Google Analytics --> <script async src="https://www.googletagmanager.com/gtag/js?id=UA-XXXXX-X"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-XXXXX-X', { 'optimize_id': 'GTM-XXXXXX'}); </script> When I run AB test on the page. It is unable to find the Optimize ID as the script is in the sync file and not rendered in the head tag. As far as I can understand the Optimize code should be in the head tag.
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