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Google Tag Manager

Use GTM if your team deploys tags through Tag Manager and can’t modify the site’s codebase directly.
GTM injects scripts at runtime, so schemas are client-injected and automatic detection is not possible. After publishing your container, you must manually confirm the integration in the InstantSchema dashboard.

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Setup

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1. Create a new tag

In your GTM workspace, go to Tags → New.

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2. Choose Custom HTML

Select Custom HTML as the tag type.

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3. Paste the CDN snippet

Copy the CDN tag from the CDN tab of your InstantSchema integration panel, and paste it into the HTML field: 
<script
  src="https://app.instantschema.com/v1/loader.js"
  data-project-id="YOUR_PROJECT_ID"
  async
></script>

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4. Set the trigger

Set the trigger to All Pages so the tag fires on every page view.

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5. Save and publish

Click Save, then Submit and publish your container.

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6. Mark as active in the dashboard

Because GTM injects at runtime, the InstantSchema dashboard can’t detect it automatically. Once your container is published:
  1. Open your project in the InstantSchema dashboard
  2. In the integration panel, click Mark as active
  3. Confirm in the dialog
The panel will show Integration active · via Google Tag Manager.

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Disabling

If you later remove the GTM tag, click Disable in the integration panel to reset the status so detection runs again.