> For the complete documentation index, see [llms.txt](https://help.tellius.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tellius.com/tellius-6.4/settings/data-flow.md).

# Data Flow

Turn the Dataflow capability on or off for your whole Tellius deployment from Settings, Modules, Data.

Under **Settings → Modules → Data → Data Flow**, super users turn the Dataflow capability on or off for the whole deployment. The page has one switch, **Enable Dataflow**. The setting applies to every user in the workspace, not to one person.

<figure><img src="https://1702728550-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FC5PhRxmOjkQZJEO6F9Zw%2Fuploads%2FBnWKWbdDgOmmnj2lb4hu%2Fdata-flow-64.png?alt=media&amp;token=958174c5-7914-4c66-8c7c-d8a60f74731b" alt="The Data Flow page with the Enable Dataflow switch highlighted and Cancel and Save at the top right" width="563"><figcaption></figcaption></figure>

### Change the setting

1. Turn **Enable Dataflow** on or off.
2. Select **Save**. A message confirms the update.

**Cancel** puts the switch back the way it was saved. If you leave the page without saving, Tellius asks whether to keep editing or discard the change.

{% hint style="warning" %}
**A deployment-wide switch.** Because this switch changes the deployment for everyone, change it only when you know your workspace needs it, for example when Tellius Support asks you to. If you're not sure what your workspace uses it for, leave it as it is.
{% endhint %}

### Who can see this page

Only super users see **Data Flow** in Settings. A custom role reaches it with **Manage system** under **Administration**. See [Custom roles](/tellius-6.4/settings/users-and-access/custom-roles.md).

### In releases before Tellius 6.4

This switch was under **Settings → Advanced → Data Flow**. It controlled the Dataflow module, which let users design transformation pipelines between datasets, such as joins, filters, aggregations and derived columns.

<figure><img src="https://content.gitbook.com/content/C5PhRxmOjkQZJEO6F9Zw/blobs/rIn51Sbi4HikUlMFf5Hc/image.png" alt="" width="563"><figcaption><p>Data flow settings</p></figcaption></figure>


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