# Retention classes

A **Retention Class** is a set of properties that define how long files - both internal and external - must be kept in Data Mover after being managed.

To access Retention Classes, go to **Setup** → **Retention Classes**.

<figure><img src="/files/i9WFWerHjYksueGYpAf2" alt=""><figcaption></figcaption></figure>

The Retention Classes page is quite simple to navigate. Here is how you do it.

On the left side of the screen you will see the list of results - this will show already created Retention Classes. The results are completed with these details:

* their **Name**
* the **Description** they are associated with

You can sort through results by clicking the ![](https://files.readme.io/83b7746-icona_2.png)icon next to the **Name** wording. **In case of lowercase and uppercase classes, uppercases' are listed before!**

At the top of the list of results, a toolbar is available. Learn how to use it [here](/data-mover-1.21/getting-started/navigate-through-primeur-data-mover.md#the-toolbar).

For each Retention Class, you can also click on the ![](https://files.readme.io/e713f6a-three_dots_icon.png) icon to:

* EDIT the Retention Class
* DELETE the Retention Class

{% hint style="info" %}
If a Retention Class is linked to a VFS or VFS Path, it cannot be deleted!
{% endhint %}

The right side of the screen is where you will find the Filters panel. **Note that the edit box is case-sensitive!**

<figure><img src="https://files.readme.io/4a68257-RetentionClassFilter.png" alt="" width="188"><figcaption></figcaption></figure>

You will find the time and date of the **last update** to the page at the top of the Filters panel.

Last but not least, click the **New** button to create a new Retention Class.\
Fill in these fields:

<table><thead><tr><th width="283.5999755859375">Field</th><th>Description</th></tr></thead><tbody><tr><td><strong>NAME (*)</strong></td><td>Assign a Name to the Retention Class.</td></tr><tr><td><strong>DESCRIPTION</strong></td><td>Enter the description of Retention Class.</td></tr><tr><td><strong>EXPIRY AFTER PUT (HOURS) (*)</strong></td><td>Set for how many hours the file must remain in Data One once delivered.<br>The minimum value is 1 hour.</td></tr><tr><td><strong>EXPIRY AFTER GET (HOURS) (*)</strong></td><td>Set for how many hours the file must remain in Data One once received.<br>The minimum value is 1 hour.</td></tr></tbody></table>

Once you have created the Retention Class, press **Save** and your Retention Class will appear in the Result list.


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