Adding Conversion snippet to contactform 7

Hello,

hope somebody knows how ? I want to add google conversation snippet to the send button of a
contact form 7 – but didn’t find where to place it.
Does anybody know how this could work ?

Best Sarah

<!-- Google tag (gtag.js) --> <script async src="https://www.googletagmanager.com/gtag/js?id=AW-xxxxx"></script> <script> window.dataLayer = window.dataLayer || []; function gtag()dataLayer.push(arguments); gtag('js', new Date()); gtag('config', 'AW-xxxxx'); </script> 

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