Why doesn’t my campaign have any impressions?

A campaign might not serve for multiple reasons:

Campaign/Ads are paused

The campaign and at least one ad in the campaign must be enabled. To enable a paused campaign or ad, hover over the orange bubble at the end of the campaign or ad row; a play button appears. To pause a campaign or ad, hover over the green bubble; a pause button appears.

Outdated report

Adjust the date range to a time when the campaign should have been live.

Campaign targeting is too restrictive

If you target specific cities, a few categories, and only the latest OS, you limit the available inventory you can serve on. In such cases you usually get a few impressions, not zero, but sometimes targeting and ad types (see below) combine and lead to no available inventory.

Not enough ad types

In general you get impressions regardless of ad types, but sometimes when a restricted set of ad types combines with campaign targeting, you may have no inventory available. See the article on Ad Specs to learn AppLovin’s network averages by ad type (though some categories may only serve Banner ads, for example).