# 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 [<mark style="color:blue;">**creating reports**</mark>](/the-platform/user-level-audience-reporting/creating-reports/creating-advanced-user-level-reports.md) you'll be able to choose custom event metrics. Below we walk you through how they work.

![](/files/yALJA231ExKw2sIzHBNo)

### Event Counts

Fairly straight-forward we'll return the total number of events, counted either [<mark style="color:blue;">by day or relative (cohort) day.</mark>](/the-platform/user-level-audience-reporting/report-layout/chart-type-module-absolute-vs.-relative-reports.md) 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 [<mark style="color:blue;">the time a user is active in the app.</mark>](/the-platform/user-level-audience-reporting/advanced-reporting-methods/adding-user-time-to-your-reports.md)

### 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.


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