Concept course

Migrating to GTM

The real-world job: take a site with hard-coded tags scattered across the source and move them into one clean container, without losing data or double-counting along the way.

Start lesson 15 short lessons · reading · self-paced

Syllabus

1
Why Migrate At All
From tags buried in source code to one managed container.
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2
Audit What'S Already There
You can't move what you haven't found.
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3
Rebuild Tags In GTM
Recreate each tag, but don't go live yet.
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4
Run In Parallel, Then Cut Over
The trick that prevents data loss and double-counting.
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5
Verify, Then Keep It Clean
Confirm the switch worked, and stop the chaos returning.
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