Google this week announced that it will remove the Insights tab in Campaign Manager, Google's adserver. Google scheduled the removal for the week of November 2.
According to Google, the Insights tab in Campaign Manager reporting will be removed because of the low usage.
Google is suggesting advertisers to use Data Studio instead or to use the Instant Reporting in Campaign Manager.
According to Google, the Insights tab shows campaign performance visually, in the form of graphs, tables, and pie charts, to help advertisers with future media planning. Insights show which publishers performed above or below a goal (the default is CTR), or what time of day generates the highest click-through rate.