---
title: Synchronized Data Extensions
slug: segment/synchronized-data-extensions
docTags: 
createdAt: 2026-01-15T00:54:58.881Z
---

Synchronized Data Extensions are tables that synchronize data from your Salesforce CRM into SFMC. In Unaric Segment, you can use Synchronized Data Extensions as read-only available data sources to build your Selections.

## Enable Synchronized Data Extensions

You can find your Synchronized Data Extensions by clicking the funnel icon in the Available Data Extensions section to see if the Synchronized Data Extensions folder is listed.

If Synchronized Data Extensions are not visible in your account, you can request the Unaric Segment support team to add them by providing the folder's unique **FolderId**.

### Find FolderId

1. Go to **Email Studio > Email**.
2. Select the **Subscribers** tab and **Data Extensions**.
3. Open the Developer Console (in Chrome, right click and select **Inspect**).
4. Make sure the folder containing the Synchronized Data Extensions is visible on the left pane; otherwise, expand the required sections to see it.

::Image[]{src="https://support.deselect.com/hc/article_attachments/17531658744849" size="50" width="1912" height="572" isUploading="false" darkWidth="1912" darkHeight="572" showCaption="false"}

5. On the top right, click the** Select Element** icon.

::Image[]{src="https://support.deselect.com/hc/article_attachments/17531649736593" size="40" width="282" height="252" isUploading="false" darkWidth="282" darkHeight="252" showCaption="false"}

6. Select the** Salesforce Data Extensions** folder.

::Image[]{src="https://support.deselect.com/hc/article_attachments/17531662320913" size="50" width="572" height="186" isUploading="false" darkWidth="572" darkHeight="186" showCaption="false"}

7. In the element selected in the Console, you'll see an element inside a tag, where there's a `categoryId` element (see the screenshot below). In this case, the **FolderId** is the encircled element: *308639*.

::Image[]{src="https://support.deselect.com/hc/article_attachments/17531675551633" size="40" width="1642" height="588" isUploading="false" darkWidth="1642" darkHeight="588" showCaption="false"}

::Image[]{src="https://support.deselect.com/hc/article_attachments/17531690788241" size="40" width="748" height="226" isUploading="false" darkWidth="748" darkHeight="226" showCaption="false"}

8. Provide this **Folderid** to the Unaric Segment Support team with your organization name and business unit number.