Set up Conversion Lift based on geography

Conversion Lift isn’t available for all Google Ads accounts. To use Conversion Lift, contact your Google account representative.

Conversion Lift allows you to measure the incremental conversions driven by your Google Ads campaigns. With Conversion Lift, you can run a controlled experiment whereby you can separate your customers into comparable geographic groups, and measure the lift in downstream conversions that are driven by each of these 2 groups:

  • Geographic regions that show your ads
  • Geographic regions that don't show your ads

The difference in conversions between these 2 groups will tell you the “lift,” or the increase in conversions that are caused by your campaigns. Conversion Lift also allows you to split the exposed and control groups based on geography.

In this article we’ll be focusing on Conversion Lift based on geography.


Before you begin

Before you can set up Conversion Lift measurement, you need to create a campaign to serve on a supported Google Ads platform. The supported campaign types are App, Demand Gen, Discovery, Display, Video, Search, Shopping, and Performance Max. For more information, reach out to your Google account representative.

Is Conversion Lift based on geography the correct tool for my question?

This test is recommended for you as an advertiser if you want to understand the total, unattributed, incremental return on investment (ROI) of your campaigns. Here are a few of the benefits:

  • Understand the total incremental return on ad spend (iROAS) of your campaigns in order to make budget allocation decisions
  • Geo-split methodology is available externally
  • Measure multiple channels in one study
  • Measure multiple conversion types, such as web and app, in one study

Conversion Lift based on geography eligibility

To use Conversion Lift, your Google Ads account must be tracking at least one compatible conversion action. Alternatively, you can also provide your account team with your offline data. Here are the different types of conversion you can leverage for Conversion Lift based on geography:

  • Google Ads Conversion Tag (formerly known as Google Ads Tag)
  • Firebase Conversion Tag
  • Display and Video 360 (DV360) Floodlight
  • Bring your own device (BYOD) support for any offline conversion type aggregated to ZIP or city level

In addition to conversions, campaigns must target a single country to be eligible for the geo-split methodology.

Note: Minimum detectable iROAS is the effect size we need during the test in order to have a high chance to detect significant lift. This will help with budget decisions.

There are 3 levels of feasibility status:

  • High
  • Medium
  • Low

“High” feasibility status will give you the best chance at generating statistically significant results. We don’t recommend proceeding with low feasibility status, in this scenario you should update your budget based on the recommendation and review your updated feasibility result.

Depending on your conversion goals and business type, “Medium” feasibility status may be reasonable but we recommend proceeding with caution. For more information, contact your account manager.

Lift isn’t guaranteed for a variety of reasons, which is why we recommend using a test and learn framework to iterate and improve your outcomes overtime. To improve your estimated conversions, you can increase your budget or optimize your experiment to shallow conversions that are directionally correlated with your purchase goal. Make sure to follow the best practices of the campaign. For more information, contact your account manager.

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Set up Conversion Lift measurement

Note: The instructions below are part of the new design for the Google Ads user experience. To use the previous design, click the "Appearance" icon, and select Use previous design. If you're using the previous version of Google Ads, review the Quick reference map or use the Search bar in the top navigation panel of Google Ads to find the page you’re searching for.
  1. In your Google Ads account, click the Goals icon Goals Icon.
  2. Click the Measurements drop down in the section menu.
  3. Click Lift measurement.
  4. Click the plus button.
  5. Select Conversion Lift under based on Geography section.
  6. Choose which campaigns you’d like to opt into Conversion Lift.
    • Note: Campaigns can only be active in one study at a time. If you’re unable to select a campaign, it most likely means that it’s already being used in another study.
  7. Select the start and end dates for your study.
  8. Select the conversions that you want to test with.
  9. Review the feasibility status in the right-hand column for an estimate on how likely you are to get precise results based on the campaigns being measured.
    • Note: A “High” feasibility status will offer you the best chances of a successful study. Increasing your budget or including all the campaigns for a specific channel or goal will help you achieve a “High” feasibility status.
  10. Click Save.


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