---
title: Custom Values
slug: segment/custom-values
docTags: 
createdAt: 2026-06-05T21:58:12.007Z
---

:::hint{type="info"}
This feature is available in **Unaric Segment Plus** and **Unaric Segment Advanced**.
:::

Custom Values fields allow you to enrich your data by creating fields or columns that do not come from any Data Extension. They allow you to add various types of generated data to your results, such as fixed static values, dynamic values based on specific conditions, timestamps, date calculations, or aggregated metrics like sums and averages.

## Add Custom Values

1. Inside a Selection, go to the **Output** step.
2. On the left panel, select the **Custom Values **tab.

::Image[]{src="https://support.deselect.com/hc/article_attachments/29446530291857" size="40" width="328" height="471" isUploading="false" darkWidth="328" darkHeight="471" showCaption="false"}

3. Click **Add new value** to create new Custom Values.

::Image[]{src="https://support.deselect.com/hc/article_attachments/29446552563985" size="50" width="827" height="546" isUploading="false" darkWidth="827" darkHeight="546" showCaption="false"}

:::hint{type="danger"}
When a Custom Value is deleted, it is permanently removed from Unaric Segment and cannot be recovered. To prevent this issue from happening we recommend:

- Creating a copy of the Selection, the Custom Value will also be created and serve as a reference if you choose to recreate it.
- Create a Shared Custom Value (only available in **Unaric Segment Advanced**). See [Shared Custom Values](docId:0VzAcUs8-T6L7VFcVH1wa).
:::

## Custom Values types

| **Type**                                                                  | **Description**                                                              | **Related Article**                   | **Available on** |
| ------------------------------------------------------------------------- | ---------------------------------------------------------------------------- | ------------------------------------- | ---------------- |
| **[Fixed Custom Value](docId\:WwqHttwIoQPdJE-n-_PT7)**                    | A fixed value is added to all rows                                           | Fixed Custom Value                    | Plus, Advanced   |
| **[Dynamic Custom Value](docId\:g7ZQITheg6U6LdxRf6tMM)**                  | A custom value that varies based on a set of conditions                      | Dynamic Custom Value                  | Plus, Advanced   |
| **[Transform Date Custom Value](docId\:Q9_E3rURWUttqj3ctVCP8)**           | Transform a date field in a Data Extension or Data View                      | Transform Date Custom Value           | Plus, Advanced   |
| **[Timestamp Custom Value](docId\:oCHRjkjB1eLyErvI0iYY3)**                | Add the timestamp of when the Selection runs                                 | Timestamp Custom Value                | Plus, Advanced   |
| **[Date Difference Custom Value](docId:-BwE5CBbLhm1tYE6chw1K)**           | Calculate the difference between 2 date fields                               | Date Difference Custom Value          | Plus, Advanced   |
| **[Row Number Custom Value](docId\:PjviGQ27U-tQ3aGs0-UHM)**               | Create a new subsequent row number                                           | Row Number Custom Value               | Plus, Advanced   |
| **[Apply any function (SQL) Custom Value](docId\:RJbXaWTt2peObUSkbgzDM)** | Use as many SQL functions as needed                                          | Apply any function (SQL) Custom Value | Advanced         |
| **[Aggregation Custom Value](docId\:CcEfBFMYqBFgXO7Pac7h8)**              | Calculate an aggregated value using Count, Sum, Average, Minimum, or Maximum | Aggregation Custom Value              | Plus, Advanced   |