Tutorials
Every tutorial runs on the shop of this site. Open your container's
preview mode, point it at static.ttdlab.com, and follow along.
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Verify Consent Mode v2 with the gcs parameter
Read gcs=G100 and gcs=G111 in collection requests, and find out in three minutes whether default consent is genuinely applied on any given website.
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Deduplicate the purchase event on confirmation
Why reloading the confirmation page doubles your revenue, where to put the lock, and why it must carry the transaction id rather than a plain boolean.
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Tag add_to_cart properly with GTM
The dataLayer merge trap, the difference between select_item and a click on Add to cart, and how to check that the quantity being pushed is the right one.
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Read the dataLayer in GTM preview mode
Point container preview at the storefront, unfold the data model, and see why the Network tab is never enough to diagnose what a tag actually received.