Launch new features with percentage rollouts

You can use Remote Config to perform a percentage rollout to slowly expose your users to new functionality. For this use case, let us say you have a new search function that is enabled and disabled using a Remote Config parameter named new_search_feature_flag, and you want to begin by rolling it out to 10% of your installed user base.

To achieve this, edit your new_search_feature_flag parameter, add a new condition, and select User in random percentage. Use the slider to set the random percentage between 0 and 10.

Tip: You can use the Seed value to create multiple conditions that target specific ranges of the same randomized group of users. See User in random percentage for more information.

Adding parameter for percentage feature rollout

Now, when the new_search_feature_flag value is fetched from Remote Config, 10% of randomly selected users receive the value true, while the other 90% receive the value false.

When you are satisfied with the stability of the feature in 10% of the user population, you can increase it to 30%, to 50%, and eventually to 100% once you have full confidence in the feature.

Tip: Be sure to add a real-time Remote Config listener to your app to ensure that your feature flag is rolled out (or rolled back) as soon as you modify your template.