---
title: "deleteCategory"
slug: "ai-application-service-cloudoutboundmailer-deletecategory"
tags: ["Cloud Outbound Mailer"]
updated: 2026-09-17T09:35:44Z
published: 2026-09-17T09:35:44Z
canonical: "api.ncloud-docs.com/ai-application-service-cloudoutboundmailer-deletecategory"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# deleteCategory

Available in Classic and VPC

Delete an unused category. It can only be deleted if there are no templates or subcategories under it.

## Request

The following describes the request format for the endpoint. The request format is as follows:

| Method | URI |
| --- | --- |
| DELETE | /category/{categorySid} |

### Request headers

For information about the headers common to all Cloud Outbound Mailer APIs, see [Cloud Outbound Mailer request headers](/docs/en/ai-application-service-cloudoutboundmailer#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

### Request path parameters

You can use the following path parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `categorySid` | Integer | Required | SID of the category to delete - See [getTemplateStructure](/docs/en/ai-application-service-cloudoutboundmailer-gettemplatestructure) |

### Request example

The following is a sample request.

```
curl --location --request DELETE 'https://mail.apigw.ntruss.com/api/v1/category/256' \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}'
```

## Response

The following describes the response format.

### Response body

The following describes the response body.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `sid` | Integer | - | SID of the deleted category |
| `parentSid` | Integer | - | SID of the parent category |
| `name` | String | - | Name of the deleted category |

### Response status codes

For information about the HTTP status codes common to all Cloud Outbound Mailer APIs, see [Cloud Outbound Mailer response status codes](/docs/en/ai-application-service-cloudoutboundmailer#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).

### Response example

The following is a sample response.

```
{
  "sid": 256,
  "parentSid": 252,
  "name": "testCategory"
}
```