> For a complete page index, fetch https://docs.synthflow.ai/llms.txt. For full documentation content, fetch https://docs.synthflow.ai/llms-full.txt.

# Data Region

> Learn about the available clusters and how they determine where your data is stored and processed

When you create a workspace, you select a cluster that determines where your data is stored and processed. This choice impacts data residency, compliance, and latency for your organization. Review your requirements before you confirm the workspace setup, because the cluster you pick at creation time cannot be changed later.

To confirm which cluster an existing workspace uses, open **Admin** → **Workspace Settings** → **Preferences** → **Customer Region** in the Synthflow portal. When you call the [Platform API](/getting-started-with-your-api), use the base URL that matches that cluster.

> **Warning**
>
> **Cluster selection is permanent.** The cluster you choose when creating a workspace cannot be changed afterward. Make sure you select the correct cluster upfront.

> **Note**
>
> Synthflow is retiring the legacy Global cluster during Q4 2026. Every enterprise workspace on it moves to a dedicated US or EU cluster. See [Moving from the legacy cluster to a regional cluster](/legacy-cluster-migration) for how your region is chosen and what your team needs to do.

Synthflow operates three clusters. The table below shows where each one stores workspace data and where live processing runs.

| **Cluster** | **Storage** | **Compute** | **Notes**                                                                       |
| ----------- | ----------- | ----------- | ------------------------------------------------------------------------------- |
| Global      | EU          | US & EU     | Default cluster for existing workspaces. Synthflow's original architecture.     |
| US          | US          | US          | Single-region cluster with all data and processing fully in the United States.  |
| EU          | EU          | EU          | Single-region cluster with all data and processing fully in the European Union. |

**Global** is the default for workspaces created before dedicated US and EU clusters were available. Data for Global workspaces is stored in the EU, but live call processing can run in the United States or the European Union depending on traffic and routing. If you need storage and compute to stay in one region, choose **US** or **EU** when you create a new workspace.

> **Note**
>
> If you bring your own Twilio integration into an EU workspace, only some Twilio API requests run in Twilio's Ireland region. See [Twilio integration > Regional API routing](/integrate-twilio#regional-api-routing) for the full breakdown.

## FAQ

#### Can I change my cluster after creating a workspace?

No. Cluster selection is permanent. If you need a different region, create a new workspace in the correct cluster and migrate your agents and configuration. The one exception is the Synthflow-run [retirement of the legacy Global cluster](/legacy-cluster-migration), which moves enterprise workspaces to a US or EU cluster during Q4 2026.

#### What is the difference between Global, US, and EU?

**Global** stores data in the EU but can process live calls in the US or EU. **US** and **EU** keep both storage and compute in a single region. New workspaces should use **US** or **EU** unless you are continuing on the legacy Global architecture.

#### How do I find my workspace's cluster?

Open **Admin** → **Workspace Settings** → **Preferences** → **Customer Region** in the Synthflow portal. The value shown there is the cluster your workspace belongs to.

#### Which API base URL should I use?

Use the base URL that matches your workspace cluster. See [Introduction > Base URLs](/getting-started-with-your-api#base-urls) for the Global, US, and EU endpoints.

#### Are all features available in every cluster?

Most platform features work in all clusters. [WhatsApp and SMS chat agents](/launch-chat-agents) are currently available in **US** workspaces only. API and widget-based chat agents are available in all regions.

#### Does bringing my own Twilio account affect data residency?

Yes, for EU workspaces. When you connect your own Twilio account, not every Twilio API request runs in the EU. See [Twilio integration > Regional API routing](/integrate-twilio#regional-api-routing) for which requests stay in Ireland and which fall back to the US.

> Choose where your workspace data is stored and processed