---
title: "createCategory"
slug: "ai-application-service-cloudoutboundmailer-createcategory"
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-createcategory"
---

> ## 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.

# createCategory

Available in Classic and VPC

Create a category to categorize email templates.

## Request

This section describes the request format. The method and URI are as follows:

| Method | URI |
| --- | --- |
| POST | /category |

### 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 body

You can include the following data in the body of your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `categoryName` | String | Required | Name of the category to create - Enter 1-100 characters by combining Korean letters, English letters, numbers, and special characters ".", "-", and "_". |
| `parentSid` | Integer | Optional | SID of the parent category - - 1 (root) (default) - Enter if you are creating a new category under a specific category |

### Request example

The request example is as follows:

```
curl --location --request POST 'https://mail.apigw.ntruss.com/api/v1/category' \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}' \
--header 'Content-Type: application/json' \
--data '{
  "categoryName": "testCategory",
  "parentSid": -1
}'
```

## Response

This section describes the response format.

### Response body

The response body includes the following data:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `sid` | Integer | - | SID of the created category |
| `parentSid` | Integer | - | SID of the parent category |
| `name` | String | - | Name of the created 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 response example is as follows:

```
{
  "sid": 252,
  "parentSid": -1,
  "name": "testCategory"
}
```