Add GrowthBook integration documentation

_docs/_partners/data_and_analytics/ab_testing/growthbook.md

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+---
+nav_title: GrowthBook
+article_title: GrowthBook
+description: "Learn how to integrate GrowthBook with Braze."
+alias: /partners/growthbook/
+page_type: partner
+search_tag: Partner
+---
+
+# GrowthBook
+
+> [GrowthBook](https://www.growthbook.io/) is an open-source feature flagging and experimentation platform that helps teams deploy code safely, run A/B tests, and make data-driven decisions with your existing data stack.
+
+*This integration is maintained by GrowthBook.*
+
+The GrowthBook and Braze integration enables you to leverage GrowthBook's powerful statistical engine to analyze your Braze messaging experiments. Connect campaign performance to product metrics, revenue, and long-term user behavior—all within your existing data infrastructure.
+
+## Prerequisites
+
+| Requirement                        | Description                                                                         |
+|------------------------------------|-------------------------------------------------------------------------------------|
+| GrowthBook account                 | Sign up for a free GrowthBook account at [growthbook.io](https://www.growthbook.io) (cloud or self-hosted). |
+| Data export method                 | Either Braze Currents or Snowflake Data Sharing to export message engagement data to your warehouse. |
+{: .reset-td-br-1 .reset-td-br-2 role="presentation" }
+
+## Integration
+
+### Step 1: Export Braze data to your warehouse
+
+GrowthBook performs analysis directly on data in your warehouse, so you'll need to export Braze engagement data using one of these methods:
+
+- **Braze Currents**: Stream event data to your warehouse via cloud storage or direct integration
+- **Snowflake Data Sharing**: For Snowflake users, access Braze data directly through [data sharing]({{site.baseurl}}/partners/data_and_analytics/data_warehouses/snowflake)
+
+Once configured, Braze will continuously send message engagement events (sends, opens, clicks, conversions) to your warehouse.
+
+### Step 2: Run messaging experiments in Braze
+
+Configure your A/B tests using Braze's native experimentation capabilities in campaigns or Canvases. For guidance, see [Multivariate and A/B testing](https://www.braze.com/docs/user_guide/engagement_tools/testing/multivariant_testing#what-are-multivariate-and-ab-testing).
+
+Make note of your campaign names and variation identifiers, as you'll reference these when setting up analysis in GrowthBook.
+
+### Step 3: Configure GrowthBook to analyze Braze experiments
+
+To analyze your Braze experiments, you'll connect GrowthBook to your warehouse and set up the necessary queries and metrics.
+
+#### Connect your data warehouse
+
+If your Braze data is already available in GrowthBook, skip to the next step.
+
+1. In GrowthBook, go to **Metrics and Data → Data Sources**
+2. Add your warehouse as a new data source
+
+#### Create an Experiment Assignment Query
+
+In your data source settings, add an Experiment Assignment Query to identify which users received which variation:
+
+{% tabs local %}
+{% tab canvas experiments %}
+
+For Canvas experiments:
+```sql
+SELECT
+  external_user_id as user_id,
+  canvas_name as experiment_id,
+  canvas_variation_name as variation_id,
+  time as timestamp
+FROM braze_currents.users_canvas_entry
+WHERE 
+  time >= '{{ start_date }}'
+  AND time <= '{{ end_date }}'
+```
+
+{% endtab %}
+{% tab campaign experiments %}
+
+For campaign experiments:
+```sql
+SELECT
+  external_user_id as user_id,
+  campaign_name as experiment_id,
+  message_variation_name as variation_id,
+  time as timestamp
+FROM braze_currents.users_messages_email_send
+WHERE 
+  time >= '{{ start_date }}'
+  AND time <= '{{ end_date }}'
+```
+
+{% endtab %}
+{% endtabs %}
+
+#### Create Metrics
+
+Navigate to **Metrics and Data → Fact Tables** to define your event data. With fact tables in place, you can create metrics without writing additional SQL.
+
+### Step 4: View experiment results
+
+For past campaigns:
+1. Select **Experiments → Add Experiment → Import Existing Experiment**
+2. Choose the data source with Braze experiments. GrowthBook will automatically find all existing experiments.
+3. Import experiments for analysis
+4. View and analyze results using GrowthBook's statistical tools
+
+For ongoing campaigns, create the experiment before launch to monitor results in real-time.
+
+## Why GrowthBook for Braze experiments?
+
+- **Warehouse-native**: Analysis runs directly on your data without duplication
+- **Statistical rigor**: Bayesian and Frequentist engines, CUPED variance reduction, sequential testing
+- **Unified platform**: Analyze both marketing and product experiments in one place
+- **Open source**: Full transparency into calculations and methodologies
+- **Cost optimization**: Enterprise customers benefit from query optimization that reduces warehouse costs
+
+## Support
+
+For Braze Currents setup or campaign configuration, contact your Braze customer success manager.
+
+For GrowthBook configuration and analysis setup, visit our [documentation](https://docs.growthbook.io) or join our [Slack community](https://join.slack.com/t/growthbookusers/shared_invite/zt-2xw8fu279-Y~hwnfCEf7WrEI9qScHURQ).