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What can you do with Remote Config personalization?

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Remote Config personalization optimizes for Google Analytics events, so if you can trigger an event with meaningful parameters, you can create a personalization for it.

For the most useful results, you should choose an event that triggers often with alternative values that you expect to produce significant differences in outcomes. Personalization performs best when you have at least 10,000 users and over 1000 triggering events per week (or conversions).

A few of the different ways you can personalize your app are described below.

Optimize for ad impression revenue

One way you can use personalization is to optimize for ad impression revenue. For this use case, let's say you have a game with optional mini-games gated behind a full-page ad and you want to optimize the mini-game experience for each user, providing the most ad revenue without impacting user engagement.

Let's walk through one way you might accomplish this:

  1. In your game, implement custom event logging for the ad_impression event specific to the ad providers you use, making sure that currency and value parameters are included and that revenue is being added in the reported value parameter.

    Measure ad revenue describes how to automatically log ad_impression events with Admob and also provides a few other implementation examples for other ad serving platforms, like AppLovin and ironSource.

  2. Determine the Remote Config parameter you’ll use and the alternative values to choose from and ensure that the logic in your game can handle the different values.

    This example describes implementing a Remote Config parameter as a feature flag to enable several different mini-games. To do this, open the Remote Config page and click Add parameter. You can name the Remote Config parameter minigame with a default value of no_game.

    Add a Remote Config parameter

  3. Now, add a personalization by clicking Add new and selecting Personalization.

  4. Add up to five alternative values, and then click Next.

    For this minigame example, you can use tictactoe, word_scramble, and race.

    Add alternative values

  5. Next, choose an objective. Because you are now logging ad impression events that contain revenue values, select Ad Impression as the objective, choose SUM and value as the parameter to aggregate, and add an additional tracking metric for User engagement time. This allows you to see how it compares in personalization results.

    You can select one other event as a custom metric here, too, if you find it relevant.

    Select an objective

  6. Click Next to choose a target condition. Because you are optimizing on the aggregated value of ad impression revenue, if you aren't converting your event revenue value into the same currency, you may want to create a condition based on users in a specific region to improve consistency.

    Choose a target condition

  7. Click Next and name your personalization, then click Save.

    Name your personalization

  8. Click Publish changes to launch the personalization. Users will begin to receive personalized parameter values in a few hours (depending on the Remote Config fetch interval. Because the amount of time a value is applied to a user (the stickiness window) is 24 hours, we recommend that you let your personalizations run for 14 days (or perpetually) so that they continually learn and improve, providing an optimal experience for each user.

    You can see how your personalizations are performing by clicking on the parameter's targeting condition on the Remote Config page.

Now that you've learned how to create a personalization, read on to explore other use cases and discuss the options you can use to implement them.

Select the best ad placement for each user

Different users may respond in different ways when presented with certain ad form factors or location. In this use case, you can use a Remote Config parameter like ad_placement with different locational values, and optimize for ad clicks.

When optimizing for ad_clicks, you may want to configure at least one additional metric for user_engagement to track user engagement levels to ensure they stay high.

Personalization Component Potential and recommended values
Remote Config parameter ad_placement
Alternative values top-left, bottom, middle-panel, full-screen
Objective ad_clicks
Additional metrics user_engagement

Optimize for ad frequency

In this use case, you can optimize ad frequency, optimizing for user engagement to determine which ad frequency results in the most user engagement. Use ad_click as an additional metric to track.

Personalization Component Potential or recommended values
Remote Config parameter ad_display_freq_in_min
Alternative values 2, 10, 50
Objective user_engagement
Additional metrics ad_click

Determine the best difficulty selection to maximize for user engagement

In this use case, you can customize your app for each user, choosing the right level of difficulty to fully engage each individual user with varying levels of player skill. You can use level_difficulty as a Remote Config parameter and user engagement as an objective. Add any additional metric you find relevant here—this example uses level_complete to gain insight into user progression through the game.

You could also use an objective like ad impression revenue (as configured in Optimize for ad impression revenue) or use in_app_purchase to optimize for IAPs.

Personalization Component Potential or recommended values
Remote Config parameter level_difficulty
Alternative values easy, medium, difficult, impossible
Objective user_engagement
Additional metrics level_complete