---
title: Clean up unused field resources
slug: '2168'
canonical_url: https://docs.coveo.com/en/2168/
collection: coveo-for-sitecore-v5
source_format: adoc
---
# Clean up unused field resources
When using a Coveo index, you might find that you have many unused fields indexed, which can slow the overall performance of your index.
To solve this issue, instead of manually deleting every unused field, you can clean up the unused field resources directly from the **Command Center**.

> **Important**
>
> This tool only deletes fields starting with _f_ and ending with at least three digits (see [The isSourceSpecific parameter in the fieldNames table](https://docs.coveo.com/en/2562#fieldnames)).
> If your unused fields are indexed as external, they won't be deleted.

. In Sitecore, access the **Control Panel**.
. Under **Coveo Search**, select **Indexing Manager**.
. In the left menu, select **Fields**.
. Near the upper-right corner of the screen, select **Clean up Unused Fields**.
. The cleaning process has started.
To follow the progression, access the Sitecore logs.
You should see something similar to this:

```txt
 ManagedPoolThread #0 13:10:40 INFO  Job started: Clean up unused resources.
 ManagedPoolThread #0 13:10:42 INFO  144 unused fields found in the organization. They will be deleted.
 ManagedPoolThread #0 13:10:44 INFO  All unused fields deleted.
 ManagedPoolThread #0 13:10:44 INFO  Job ended: Clean up unused resources. (units processed: )
```