---
title: "Enabling Frequency Cap"
slug: "enabling-frequency-cap"
description: "Optimize ad frequency to enhance efficiency and prevent brand fatigue. Learn to set frequency caps for better campaign performance with Quantcast AI."
tags: ["Frequency", "Ad Set"]
updated: 2025-12-08T21:35:49Z
published: 2025-12-08T21:35:49Z
canonical: "help.quantcast.com/enabling-frequency-cap"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.quantcast.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Enabling Frequency Cap

**Ad Frequency** is the number of times a user is exposed to an ad from an advertiser over a specified period of time. By managing frequency, marketers can optimize the number of ads that reach their target audience to maximize efficiency, prevent brand fatigue, and drive the brand's desired outcome.

## **Enabling Frequency Cap**

Quantcast AI automatically optimizes the frequency of this ad set to best accomplish the primary objective/goal/KPI; however, you can also enable your own frequency cap to manually manage frequency.

> **Note**: We recommend allowing the Quantcast AI to manage the frequency cap for best performance.

1. You can enable frequency caps on both new and existing [ad sets](/v1/docs/new-ad-set-creation).
2. To enable **Frequency Cap** within an ad set, navigate to the ad set you would like to update or create a new ad set. In the [Targeting](/v1/docs/targeting) section, select Advanced Settings, then expand it.

![Settings for targeting options including frequency limits and cookie preferences for web ads.](https://cdn.us.document360.io/9a180fa0-df3b-4942-a5f6-b3905cf917d9/Images/Documentation/Frequency%20Cap%20Section.jpg?sv=2026-02-06&spr=https&st=2026-10-26T11%3A24%3A53Z&se=2026-10-26T12%3A24%3A53Z&sr=c&sp=r&sig=aTjsab1QLetB1MpbChFUE0g2Hdw1wolMl%2FsJzerM9js%3D)
3. Expand the **Frequency Cap** section.
4. Check the box next to **Set a Frequency Cap.**
5. Define the maximum number of impressions to serve a user in a defined frequency period. Next, define the length of the frequency period. For example, in the sample below, a user will receive no more than 1 impression every 7 days.

![Settings for campaign frequency cap limiting impressions to one every seven days.](https://cdn.us.document360.io/9a180fa0-df3b-4942-a5f6-b3905cf917d9/Images/Documentation/Set%20Frequency%20Cap(1).png?sv=2026-02-06&spr=https&st=2026-10-26T11%3A24%3A53Z&se=2026-10-26T12%3A24%3A53Z&sr=c&sp=r&sig=aTjsab1QLetB1MpbChFUE0g2Hdw1wolMl%2FsJzerM9js%3D)
6. Once the desired frequency cap has been added, the settings will be applied once you publish your ad set and begin delivering media.

## Related

- [FAQs: Campaign Management](/faqs-campaign-management.md)