---
title: "Edit traffic policy health check"
slug: "policy-health-check-edit"
tags: ["Global Traffic Manager"]
updated: 2026-09-17T10:12:30Z
published: 2026-09-17T10:12:30Z
canonical: "api.ncloud-docs.com/policy-health-check-edit"
---

> ## 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.

# Edit traffic policy health check

Available in Classic and VPC

Edit health check information of a traffic policy.

## Request

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

| Method | URI |
| --- | --- |
| PUT | /gtm/v1/policies/{policyId}/monitors |

### Request headers

For information about the headers common to all Traffic Policy APIs, see [Traffic Policy API request headers](/docs/en/policy-overview#%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 |
| --- | --- | --- | --- |
| `policyId` | Integer | Required | Policy ID - See [View policy](/docs/en/policy-view) |

### Request body

See [PolicyRequest](/docs/en/policy-request#%ED%95%84%EB%93%9C) for the request body.

### Request example

The following is a sample request.

```
curl --location --request PUT 'https://globaltrafficmanager.apigw.ntruss.com/gtm/v1/policies/****/monitors' \
--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 '{
    "hostHeader": "naver.com",
    "path": "/path",
    "period": 30,
    "port": 80,
    "protocol": "HTTP",
    "thresholdFail": 1,
    "thresholdNormal": 1
}'
```

## Response

The following describes the response format.

### Response status codes

For information about the HTTP status codes common to all Traffic Policy APIs, see [Traffic Policy API response status codes](/docs/en/policy-overview#%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.

```
"SUCCESS"
```

### Error code example

The following is a sample error code.

```
{
  "result": "FAIL",
  "error": {
    "errorCode": "05X000",
    "message": "Invalid value.<br>Hover your mouse over the displayed area to see the details in a tooltip.",
    "devMessage": "Invalid value.",
    "moreInfo": {
      "validationInfo": [
        {
          "fieldPath": "monitor.hostHeader",
          "msg": "hostHeader can't be entered unless the protocol is HTTP/HTTPS."
        }
      ],
      "timestamp": "2022-11-16T10:54:47.191+09:00"
    }
  }
}
```