Refreshing Audiences

You can refresh your audiences to make sure that the estimated size is up to date. To do this, you need to access the Audience dashboard. 

Next, you can click the refresh button in the audience you would like to update. If we're talking about an Open targeting audience, then you won't be able to see the estimated audience size. 

If the audience is too small to be used in campaign creation, you will see the following message:

This could be due to the fact that the audience is literally too small, or it is still populating:

Audiences such as custom audiences, lookalikes, or website audiences need more time to be populated. Expect it to be fully populated in a few hours. Unfortunately, it can sometimes take up to 24 hours!