Lookback windows explained

At a glance: Customize the click-through and view-through lookback windows, based on your agreements with media sources.

Lookback windows

Configurable attribution lookback window allows you to customize the attribution period based on your agreement with media sources.

By setting attribution lookback windows per media source, AppsFlyer attributes according to the agreed terms.

Lookback window types:

  • Click lookback window: Maximum period of time after an ad is clicked within which an install can be attributed to the ad. Installs that take place after the lookback window are considered Organic.
  • View-through lookback window: Maximum period of time after an ad is viewed within which an install can be attributed to the ad. Installs that take place after the lookback window are considered Organic.

Configurable lookback windows per attribution type

Attribution type

 

Attribution method

 

Click lookback window

Range

Default

Click-through

(All media sources)

 

Referrer, ID matching

1-30 Days OR
1-23 Hours

7 Days

Probabilistic modeling

Adaptive

Up to 24 hours

View-through

(Selected media sources)

 

ID matching

1-24 hours

[Until Dec 15, 2021, the upper bound was 7 days]

24 hours

Probabilistic modeling

Adaptive

Up to 24 hours

Probabilistic modeling (cross-platform)

1-72 hours

24 hours

Probabilistic modeling lookback window

The Probabilistic modeling lookback window, used to maintain attribution accuracy, has the following characteristics: 

  • Applies to both clicks and impressions
  • Has an adaptive duration of up to 24 hours
  • Disregards window duration settings sent on the attribution link
  • Has a shorter duration than windows used by deterministic models

To learn more, read about the AppsFlyer Probabilistic modeling method.

Lookback window setup

Following, we list the lookback window setup process for SRNs and Attribution Links

SRNs Lookback Window Attribution Links Lookback Window

Attribution lookback window for SRNs

 Important!

Each SRN has its own default lookback. We recommend matching the lookback window value in AppsFlyer with the SRN's value to minimize discrepancies. Changing it might result in discrepancies. To learn more, see an SRN discrepancy example.

  1. In AppsFlyer, from the side menu, select Collaborate Partner Marketplace.
  2. Search and select the SRN - see the list of supported SRNs.
  3. By default, View-Through attribution is enabled.
  4. In the Integration tab, scroll down to the Click-through attribution and View-through attribution configuration.
  5. Use the sliders to set the attribution window

See below each SRN lookback window:

SRN Default Click-Through Lookback Window (days) Default View-Through Lookback Window (hours)
Google 30 24
Meta ads 7 24
Snapchat 28 24
X Ads 14 24
Apple Search Ads 30 N/A
Oath (YahooGemini) 7 24

Distribution of first app launches

Below is a graph that shows the distribution of first app launches from the day of engagement.

The graph can give you a better sense of the number of users who install the app as a function of the lookback window.

The majority of users, a little over 97%, who launch the app do so within 7 days of engaging with the ad. The remaining 2% do so in the span between day 7 and the end of the lookback window (day 30).

In fact, almost 62% of users who launch the app, do so within 15 minutes of engaging the ad. 72% of users do so within the first hour.

Scenarios and examples

Below is a list of possible scenarios and examples of lookback window usage.

SRN discrepancy: SRN lookback longer than AppsFlyer

You set a campaign on X Ads and configure the click-through lookback window to 7 days. X Ads, on the other hand, has a default lookback window of 14 days.

srn-discrepancy-srn-lookback-larger-than-appsflyer.png

SRN lookback smaller than AppsFlyer

You set a campaign on X Ads and configure the click-through lookback window to 28 days. X Ads, on the other hand, has a default lookback window of 14 days.

srn-lookback-smaller-than-appsflyer.png

Attribution link without a lookback window parameter

It is possible to have an attribution link that doesn't have a lookback window parameter. In such cases, AppsFlyer defaults to a 7-day lookback window for clicks, and a 1-day lookback window for impressions.

Lookback in hours for flash campaigns

Flash campaigns are campaigns whose intention is to prompt users to install the app as quickly as possible and within a short promotion window.

An eCommerce app called SuperShopping runs a flash campaign. In this campaign, a user who installs the app within an hour gets special offers.

Johnny, SuperShopping's lead marketer, creates an attribution Link and sets the lookback window to 1 hour. This way Johnny knows how many users respond to the campaign.

In addition, the app's developer can identify the users that come from this flash campaign and deliver the promotions that the campaign advertises.

 Tip

Want some tips and tricks on lookback windows and attribution? Check out this short, informative course on the AppsFlyer Learning Portal.