You may sometimes notice that the data displayed in the Campaign Analytics tab is slightly different from the data found in 'Your Library'. The data in 'Your Library' and in the downloadable report is real-time data: that means it populates as your ad is being shown and interacted with. The data on the Campaign Analytics page has a slight lag due to the time it takes to display the in-depth analytics and insights we provide. 

While the Campaign Analytics page shouldn't be too far behind, we recommend for any actively running campaign that you check the Index or download a report to get the most current data.