> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/application-security/application-security-posture-management-aspm/application-security-rules/manage-custom-rules.md).

# Manage custom rules

You can manage Cortex Cloud Application Security detection rules to customize and optimize your security configurations according to your specific needs and preferences: On the **AppSec Rules** inventory, **right-click on a rule or click to open the side panel** → **select an option**:

**UI workflow**

On the **AppSec Rules** inventory, **right-click on a rule or click to open the side panel** → **select an option**:

* Edit: Opens the **Edit Rule** wizard, allowing you to manage existing rules
* Duplication: Opens the selected rule in a **New Rule** dialog box, allowing you to save a copy of the rule. This allows you to customize default rules according to your requirements

**API workflow**

Use the `Modify rule` and `Delete rule API` operations to integrate rule lifecycle management into your automated pipelines.

* **Bulk labeling and organization**: Apply labels programmatically using the `Modify rule operation` to organize rules by team, compliance framework, or business unit
* **OOTB vs. custom constraints**: When automating rule management, note that custom rules accept modifications to all fields (name, severity, frameworks and so on). OOTB rules are maintained by Cortex Cloud and cannot be deleted; they only accept label modifications via the API

For information on managing endpoints, refer to [Manage AppSec rule API documentation](https://docs-cortex.paloaltonetworks.com/r/Cortex-Cloud-Platform-APIs/Modify-an-AppSec-rule).


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