The number of my impressions is low while the number of sessions is high. What is the reason behind it?

There can be several reasons why the numbers are not the same:

 

- OptiMonk calculates the number of unique visitors instead of the number of sessions. One person may complete many sessions but will still be counted as 1 user only

- There are too many filters set up for the campaign and only few of the visitors behave in that way

- The campaign is turned on for desktops only while on mobile devices the visitors rate is higher or vice versa

- The popup displays on exit intent on specific page only while the number of abandoning visitors of that page is low