Sometimes you will get CORS policy issues in Google Tag Manager because you have not published the GTM AMP Container and due to this you will get CORS issues, So please keep in mind that you published the AMP container
You can verify the container installation and troubleshoot any issues with the Preview function found by clicking the arrow beside Publish in the top right corner of the main dashboard.
That’s it for this tutorial!
We hope it helped you. If you have any feedback or questions, then please share them in the comments section below.