# Deleting a rule definition

You can delete a rule definition that is no longer needed. You can only delete rule definitions that are not currently being used by a metadata rule.

Perform the following steps to delete a rule definition:

1. Click **Management** in the left navigation menu.

   The Manage Your Environment page opens.
2. On the **Metadata Rules** card, click **Definitions**.

   The Rule Definitions tab opens.
3. Locate the name of the rule definition that you want to delete and select its check box.
4. Click **Delete**.

   If the rule definition you are trying to delete is attached to a metadata rule, the rule definition cannot be deleted, and you get a notification asking you to unlink the definition from all associated metadata rules before you can proceed.

The rule definition is deleted, and a confirmation message appears in the upper corner of the page.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.pentaho.com/pdc-10.2-data-optimizer/pdso-management/pdso-use-rules/pdc-rule-definitions/pdc-deleting-a-rule-definition.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
