<script>
jQuery(document).ready(function( $ ){
    jQuery(document).on('submit_success', function(){
        var convertionName = 'Landing Page dyson September 2019'; // Write your convertion name here
        fbq('track', 'Lead', {content_name: convertionName}); // Facebook Pixel
        dataLayer.push({'event': convertionName}); // Google Tag Manager
    });
});
</script>