# Updates a static custom group's name, description, or member resources

Updates a static custom group (groupCategory=1). Requires groupId and resourceIds. Important: Do not include groupType or groupCategory in the request body — these are immutable after creation and will be rejected. The resourceIds field is required and replaces the entire member list — pass the full desired member set on every update; partial omission is not supported. Prerequisites: Call [Get Available Resources](https://www.manageengine.com/products/desktop-central/help/api/onpremise/custom-groups-get-available-resources.html) to discover valid resource IDs for the replacement member list.

## Endpoints

`POST /api/1.4/customgroup/updateCg`

## Request URL

`https://{server-hostname}:8383/api/1.4/customgroup/updateCg`

## Scope

`Common.UPDATE`

## Header

`Authorization: d92d4xxxxxxxxxxxxx15f52`

## Request Parameters

### Request Headers

| Name | Type | Required | Value | Description |
|---|---|---|---|---|
| Content-Type | string | Mandatory | application/json | Must be application/json. Request body must be valid JSON. |
| Accept | string | Mandatory | application/json | Must be application/json. Only JSON responses are supported. |

### Request Body

`application/json`

| Name | Type | Required | Description |
|---|---|---|---|
| groupId | long | Mandatory | Resource ID of the group to update. Fetch from [Retrieve All Custom Groups](https://www.manageengine.com/products/desktop-central/help/api/onpremise/custom-groups-get-cglist.html). |
| groupName | string | Optional | Updated group name. Max 100 chars. Must be unique. |
| description | string | Optional | Updated description. Max 250 chars. |
| resourceIds | array | Mandatory | Complete replacement member list. Pass the entire desired member set on every update — partial omission is not supported. Fetch IDs from [Get Available Resources](https://www.manageengine.com/products/desktop-central/help/api/onpremise/custom-groups-get-available-resources.html). |

## Sample Request

```curl
curl --request POST \
  --url https://appdomain/api/1.4/customgroup/updateCg \
  --header 'Accept: application/json' \
  --header 'Authorization:  d92d4xxxxxxxxxxxxx15f52' \
  --header 'Content-Type: application/json' \
  --data '{"groupName":"Windows Servers","groupId":301,"description":"Updated - Production and Staging Windows Servers","resourceIds":[101,102,103,104,105]}'
```

## Sample Request Body

Replace the entire member list and update description.

```json
{
  "groupName": "Windows Servers",
  "groupId": 301,
  "description": "Updated - Production and Staging Windows Servers",
  "resourceIds": [
    101,
    102,
    103,
    104,
    105
  ]
}
```

## Response Parameters

### HTTP Code 200

Response Body: `application/json`

| Name | Type | Description |
|---|---|---|
| message_type | string | Always `updateCg` for this endpoint. |
| message_response | JSON Object | Response payload container. |
| message_version | string | API version: `1.4`. |
| status | string | `success` when the request completed without errors. |

### HTTP Code 404

Response Body: `application/json`

| Name | Type | Description |
|---|---|---|
| message_type | string | Always `updateCg` for this endpoint. |
| message_version | string | API version: `1.4`. |
| status | string | Always `error` for error responses. |
| error_code | string | `70506` (CG_INVALID_DETAILS_TO_UPDATE). |
| error_description | string | Resolved I18N message: `No such Custom Group found.` -- group does not exist, user is out of scope, or group is invalid for current product edition. |

### HTTP Code 412

Response Body: `application/json`

| Name | Type | Description |
|---|---|---|
| message_type | string | Always `updateCg` for this endpoint. |
| message_version | string | API version: `1.4`. |
| status | string | Always `error` for error responses. |
| error_code | string | `70501` (CG_CREATE_UPDATE_PARAMS_MISSING), `70502` (CG_DUPLICATE_NAME), `70509` (CG_DUMMY_CG_RENAME), `70503` (CG_NULL_CRITERIA_PATTERN), `70517` (CG_INVALID_CRITERIA_PATTERN), `70508` (CG_MORE_COMPUTERS_DUMMY_CG), `70513` (CG_INVALID_CREATION_MODE). |
| error_description | string | Resolved I18N message varies by error code: `Required parameters are missing to create/update Custom Group.` (70501), `Custom group name is already in use.` (70502), `All Features Group cannot be renamed.` (70509), `Criteria pattern is empty.` (70503), `Invalid criteria pattern.` (70517), `Computer limit exceeded for free edition.` (70508), `Only manually created Custom Group is allowed to be accessed using external apis.` (70513). |

### HTTP Code 500

Response Body: `application/json`

| Name | Type | Description |
|---|---|---|
| message_type | string | Always `updateCg` for this endpoint. |
| message_version | string | API version: `1.4`. |
| status | string | Always `error` for error responses. |
| error_code | string | Internal error code: `1003` (INTERNAL_ERROR). |
| error_description | string | Resolved I18N message, typically: An internal error occurred while processing the request. |

## Possible Response Codes

- `200` HTTP code
- `404` HTTP code
- `412` HTTP code
- `500` HTTP code

## Sample Response: HTTP 200

Group details and membership updated.

```json
{
  "message_type": "updateCg",
  "message_response": {
    "updatecg": {
      "groupName": "Windows Servers",
      "cgResourceId": "301"
    }
  },
  "message_version": "1.4",
  "status": "success"
}
```

Static group updated but some submitted resource IDs were not found.

```json
{
  "message_type": "updateCg",
  "message_response": {
    "updatecg": {
      "groupName": "Windows Servers",
      "invalidResourceIds": [
        999,
        998
      ],
      "cgResourceId": "301"
    }
  },
  "message_version": "1.4",
  "status": "success"
}
```

## Sample Response: HTTP 404

Group ID does not exist or user lacks access.

```json
{
  "error_description": "No such Custom Group found.",
  "message_type": "updateCg",
  "error_code": "70506",
  "message_version": "1.4",
  "status": "error"
}
```

## Sample Response: HTTP 412

Required field is missing — groupId, or resourceIds for a static update.

```json
{
  "error_description": "Required parameters are missing to create/update Custom Group.",
  "message_type": "updateCg",
  "error_code": "70501",
  "message_version": "1.4",
  "status": "error"
}
```

## Sample Response: HTTP 500

Unexpected server-side failure during update.

```json
{
  "error_description": "An internal error occurred while processing the request.",
  "message_type": "updateCg",
  "error_code": "1003",
  "message_version": "1.4",
  "status": "error"
}
```

## API Rate Limit

![](https://www.zohowebstatic.com/sites/zweb/images/people/ico-help.png)

**Duration:** 1 minute | **Threshold:** 30 | **Lock period:** 5 minutes

Duration - Time window for the threshold.
Threshold - Number of API calls allowed within the specified duration.
Lock Period - Wait time before consecutive API requests.