Add Hex integration doc to Data Observability BI section (#36400)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: jeff-morgan-dd <jeff.morgan@datadoghq.com>

Author: 3 people

content/en/data_observability/quality_monitoring/business_intelligence/_index.md

@@ -19,6 +19,7 @@ Use these integrations to:
 - **Plan schema or transformation changes** with insight into which dashboards will be affected
 
 {{< whatsnext desc="Connect to these business intelligence tools:" >}}
+   {{< nextlink href="data_observability/quality_monitoring/business_intelligence/hex" >}}Hex{{< /nextlink >}}
    {{< nextlink href="data_observability/quality_monitoring/business_intelligence/looker" >}}Looker{{< /nextlink >}}
    {{< nextlink href="data_observability/quality_monitoring/business_intelligence/tableau" >}}Tableau{{< /nextlink >}}
    {{< nextlink href="data_observability/quality_monitoring/business_intelligence/sigma" >}}Sigma{{< /nextlink >}}

content/en/data_observability/quality_monitoring/business_intelligence/hex.md

@@ -0,0 +1,48 @@
+---
+title: Hex
+description: Connect Hex to Datadog Data Observability to view field-level lineage from warehouse tables to Hex projects and SQL cells.
+further_reading:
+  - link: '/data_observability/'
+    tag: 'Documentation'
+    text: 'Learn about Data Observability'
+---
+
+## Overview
+
+Datadog's Hex integration helps data teams view end-to-end lineage between warehouse tables and Hex projects. The integration collects metadata and field-level lineage for objects in your Hex workspace. When Datadog connects, it:
+
+- Pulls metadata from your Hex workspace, including projects and SQL cells
+- Generates field-level lineage between warehouse tables and columns and downstream Hex projects and SQL cells
+- Derives lineage for all [supported data warehouse destinations][1]
+
+## Setup
+
+### Create a Hex workspace token
+
+1. In your Hex workspace settings, go to the {{< ui >}}API keys{{< /ui >}} page.
+2. Click {{< ui >}}New Token{{< /ui >}} to generate a workspace token.
+3. Provide a description and an expiration time frame. Datadog recommends setting up a token with no expiration.
+4. For the API scopes, select {{< ui >}}Read Access{{< /ui >}} under {{< ui >}}Projects{{< /ui >}}, {{< ui >}}Cells{{< /ui >}}, and {{< ui >}}Data connections{{< /ui >}}.
+
+### Add the API credentials to Datadog
+
+1. Navigate to the [Hex integration tile][2].
+2. Click {{< ui >}}Configure{{< /ui >}} > {{< ui >}}+ Add New Account{{< /ui >}}.
+3. Fill out the form with the following:
+   - {{< ui >}}API Token{{< /ui >}}: The token from the previous step
+   - {{< ui >}}Workspace URL{{< /ui >}}: Required only if you are a single-tenant, EU multi-tenant, or HIPAA multi-tenant customer. Leave empty otherwise.
+4. Click {{< ui >}}Save{{< /ui >}}.
+
+## What's next
+
+It can take up to 60 minutes for data to appear after the initial setup.
+
+After syncing, you can explore your Hex projects and their upstream warehouse dependencies in the [Data Observability Catalog][3].
+
+## Further reading
+
+{{< partial name="whats-next/whats-next.html" >}}
+
+[1]: /data_observability/quality_monitoring/data_warehouses
+[2]: https://app.datadoghq.com/integrations/hex
+[3]: https://app.datadoghq.com/data-obs/catalog