Q: Should I push event values into the dataLayer or pull them with GTM variables?
A: Use both — they're two halves of the same flow, not alternatives.
— Push from the dataLayer when the value lives in your backend/CMS — e.g. dataLayer.push with order total at purchase. Developers control accuracy here.
— Pull with GTM variables (DOM Element, Auto-Event, or built-ins) when you can't change the code and must scrape the value from the page or URL.
— Prefer dataLayer when possible: DOM scraping breaks the moment a designer changes a CSS class.
TL;DR: dataLayer push = reliable, dev-owned data. GTM DOM variables = fragile fallback when you can't touch code. Push if you can, scrape only if you must.
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Q: Should I push event values into the dataLayer or pull them with GTM variables?
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