<script async src="https://www.googletagmanager.com/gtag/js?id={{ $account_id }}"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag('js', new Date());
gtag('config', 'XXXXX');
</script>
here gtag('config', 'XXXXX'); and $account_id can be same of different?