Preview & Debug

5 questions. Answer all of them, then submit; you need 4 of 5 to pass.

1. 1. Your thank-you page pushes a purchase event to the dataLayer with the order value. To send that to GA4, what do you build in GTM?

   A GA4 Event tag, a Custom Event trigger on purchase, and a Data Layer Variable for the valueA single tag; triggers and variables are optional extras for advanced setupsA trigger only; GTM sends the data to GA4 automatically once the trigger matchesA Custom HTML tag that polls the page every second for a new order
2. 2. What is the dataLayer's job in a well-built setup?

   It stores GTM's container settings so they survive a page reloadThe site announces what happened as structured pushes, and GTM decides what to do with themIt sends hits directly to GA4 without needing any tagsIt replaces cookies as the browser's storage mechanism
3. 3. The site pushes { event: "purchase", ecommerce: { value: 49 } }. Which piece of GTM reads the event name, and which reads the value?

   A Data Layer Variable reads the event name; a Custom Event trigger reads the valueA Custom Event trigger matches the event name; a Data Layer Variable reads ecommerce.valueThe Google tag reads both automatically with no configurationA Lookup Table reads the event name; a Constant holds the value
4. 4. You just finished building a new tag. What should happen before it goes live?

   Publish immediately; GTM validates tags automatically on publishDelete your old container version so the new one takes effectPreview it with Tag Assistant, confirm it fires correctly, then publish a named versionEmail the container ID to Google for review
5. 5. In Tag Assistant your new tag shows as not fired. What is the recommended first place to look?

   The Data Layer tab, to confirm the event you expected actually arrivedThe container's version history, to see who last publishedThe GA4 realtime report, to see whether the hit reached GoogleThe browser's cookie settings, since tags need cookies to fire