# Connect AdLibertas to Firebase
### Step 1: Link Google BigQuery to Firebase
Firebase by itself doesn’t allow access to individual events. To enable AdLibertas Audience Reporting to access your Firebase data you’ll need to first [link a Firebase project to BigQuery](https://support.google.com/firebase/answer/6318765?hl=en\&ref_topic=6317497) (google documentation)
{% hint style="info" %}
**Data Sampling on Spark: inaccuracies on the free plan**
Google BigQuery is available for all Firebase projects. **For Firebase projects that stay on the Spark plan, the raw event data exported to BigQuery is sampled and only represents \~10% of the actual events on the free plan.** To export all events you’ll need to upgrade to the [Blaze Plan.](https://firebase.google.com/docs/projects/billing/firebase-pricing-plans)
{% endhint %}
* You’ll need Firebase owner privileges to enable this feature
* Be sure to include advertising identifiers.
* We recommend daily exports, to [minimize your costs](/data-integrations/analytics-connections/firebase-best-practices-keeping-google-bigquery-costs-down.md).
{% hint style="info" %}
Note: Today we only export Google Analytics, so you don’t need to enable Crashlytics / / etc. **But you will** want to export *Include advertising identifiers in export* for maximum user granularity.
It takes up to 24 hours for the dataset to be created and for event collection to begin.
{% endhint %}
### Step 2: Add AdLibertas as a viewer to your Firebase Project
Next, you'll want to invite an AdLibertas-enabled Firebase user to your project(s). In addition to your data export, this will enable us to pull Experiment names directly from your AB tests running in Firebase.
Add <`yourcompanyname>@adlibertas.com` to your Firebase project with **Viewer** role.
{% hint style="info" %}
You’ll need to have owner privileges to add members to your Firebase account.
{% endhint %}
1.[ Sign in](https://console.firebase.google.com/) to Firebase.\
2\. Select the project associated with the app you want to share access\
3\. Click,
then select **Users and permissions.**\
4\. On the Permissions page, click **Add member.**\
5\. In the user dialog, enter [myCompanyName@adlibertas.com](mailto:myCompanyName@reporting.adlibertas.com)\
6\. Select **Viewer** as role.
Related: [Firebase Reporting Details](https://docs.adlibertas.com/data-integrations/analytics/setting-user-campaigns-in-firebase)
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