A/B Testing troubleshooting and FAQ

This page provides troubleshooting help and answers to frequently-asked questions about using A/B Testing . If you can't find what you're looking for or need additional help, contact Firebase support .

General troubleshooting/FAQ

How many experiments can I create and run?

You are allowed up to 300 experiments per project, which could consist of up to 24 running experiments, with the rest as draft or completed.

Why can't I view my experiments after unlinking and relinking my project to Google Analytics?

Linking to a different Google Analytics property will cause you to lose access to experiments created beforehand. To regain access to a previous experiment, re-link your project to the Google Analytics property that was linked when the experiment was created.

Why do I receive a "Project not linked to Google Analytics" message when creating a Remote Config experiment?

If you've already enabled Google Analytics in your project and linked your apps, but you're still seeing a message that Google Analytics is not linked, then make sure that an Analytics stream exists for all apps in your project. Currently, to use A/B Testing , all apps in a project must be linked to Analytics .

Here's how to verify the list of all active streams for your Google Analytics integration:

In the Firebase console, go to the Settings > Integrations page .
In the Google Analytics card, click Manage .

Creating a Google Analytics stream for any app that does not have one should resolve the issue. There are a few ways to create streams for missing apps:

If you only have one or two apps missing an associated Google Analytics stream, you can choose one of the following methods to add a Google Analytics stream:
- In the Firebase console, delete and re-add any app without an active stream.
- From the Google Analytics console , select Admin, click Data Streams, then click Add stream, add the missing app's details, and click Register app.
If you have more than a few missing app streams, unlinking and relinking your Google Analytics property is the fastest and most efficient way to create the missing app streams:
1. In the Firebase console, go to the Settings > Integrations page .
2. In the Google Analyticscard, click Manage.
3. Make a note of the Google Analytics Property IDand the Linked Google Analytics account.
4. Click Moreand select Unlink Analytics from this project.
5. Review the warning that appears (don't worry here; you will relink the same property in the next step), then click Unlink Google Analytics.
  
  When unlinking is complete, you'll be redirected to the Integrationspage.
6. In the Google Analyticscard, click Enableto begin the relinking process.
7. Select your Analytics account from the Select accountlist.
8. Next to Automatically create a new property in this account, click Editand, from the Analytics propertylist that appears, select your property ID.
  
  A list of all apps in your project appears. Existing stream mappings for each app are listed, and apps that do not have a stream will have one created for them.
9. Click Enable Google Analyticsto relink the property.
10. Click Finish.

If you still receive an error creating A/B Tests with Remote Config after performing these steps, contact Firebase Support .