How targeting affects campaign serve
The targeting you choose determines the size of your campaign’s audience. Generally speaking, the larger your campaign audience, the more easily your campaign will serve, as there are more people to serve the ad to.
For more information about how targeting may affect your campaign serve, please see here. As a rule of thumb, your audience summary should be in the middle of the green recommended range.
Why is the audience summary displaying “Not available”?
During the campaign creation process, you will see “Not available” displayed when your targeting is too broad. Try adding additional targeting criteria to help define your audience.
Does the audience summary take the campaign flight dates into account?
Yes - the audience summary will consider targeting, flight length, budget, and bid into account to determine estimates.