# Custom Event Metrics By default, AdLibertas will include some important metrics with your reports: impressions, daily active users, revenue earned, and others. Undoubtedly you'll have need for custom or additional metrics on your reports. When [**creating reports**](https://docs.adlibertas.com/the-platform/user-level-audience-reporting/creating-reports/creating-advanced-user-level-reports) you'll be able to choose custom event metrics. Below we walk you through how they work. ![](https://336314087-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FaO8orL32xNzJW4MhnNef%2Fuploads%2F1la7LzeZmC2IPB56xRdb%2Fimage.png?alt=media\&token=ec899c28-5bef-4988-9253-8b1ae72036d9) ### Event Counts Fairly straight-forward we'll return the total number of events, counted either [by day or relative (cohort) day.](https://docs.adlibertas.com/the-platform/user-level-audience-reporting/report-layout/chart-type-module-absolute-vs.-relative-reports) This value will be included as a total, per user, and cumulative value. Example: `Level_complete`. Counts the number of times the event `level_complete` was fired by the audience defined. ### Event Sum In some cases, you'll want to sum the values and include the total. For instance, the sum of the `Revenue`field in the `ad_impression`event returns the total ad earnings. This is included automatically, so a better example (as pictured) is including the "sum" of the user\_engagement property which measures [the time a user is active in the app.](https://docs.adlibertas.com/the-platform/user-level-audience-reporting/advanced-reporting-methods/adding-user-time-to-your-reports) ### Value Counts In this case, you're able to include the count of certain parameter values in an event. A great example -- as pictured -- is the count of Applovin impressions in the impression event. But this could easily be the level pack earned from a reward video, or any other parameter value you would like to measure.