Frequency capping: Definition

A feature that limits the number of times your Display or Video ads appear to the same person.

Frequency is the number of times a user sees your Display or Video ads over a given time period.
When you turn on frequency capping for a Display or Video campaign, you set a limit for the number of impressions you will allow an individual user to have per day, week, month, or any combination.
For display campaigns, you can also choose whether the limit applies to each ad, ad group, or campaign.
For a video campaign, you can set a limit by the number of views. Learn more about video ad metrics and reporting.
To get started, select a campaign and edit your campaign settings. In the list of settings, find the option for "Frequency capping."