On a separate window (browser), login to your Google Tag Manager account and navigate to the container with your domain.
Click on the "New Tag" button.
Name the tag "Alli AI" (or anything else).
Under "Tag Configuration" choose Custom HTML.
Under "Triggering" choose "All Pages". Click save.
In the upper right-hand corner, click "Publish" and continue to publish all changes.
That's it! Your snippet is now in place and approved Recommendations will be automatically live within moments.