Publisher platform now allows you to embed your Google Tag Manager code onto the profile section.
This capability will replace the Google Analytics feature which has been deprecated. Existing GA users can still see their tag in their profile and would continue to be able to track data on their GA dashboard. New users would be able to accomplish this use case via Google Tag Manager itself.
This feature would be especially useful to those managers who are investing in marketing campaigns, as it would become easier to understand the effectiveness of the campaign.
For a detailed read on Google Tag Manager and its significance, please refer to this article.