## Remove a member

`DELETE /v1/chats/:chatId/users`

Removes one user from a group chat.

## Parameters

| Parameter | Type | Required | Description |
|----------|-----|:-----:|---------|
| `chatId` (path) | number | yes | Numeric chat ID (without the `chat` prefix) |

## Request fields (body)

| Field | Type | Required | Description |
|------|-----|:-----:|---------|
| `userId` | number | yes | ID of the user to remove |

## Examples

### curl — personal key

```bash
curl -X DELETE "https://vibecode.bitrix24.com/v1/chats/123/users" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "userId": 42 }'
```

### curl — OAuth application

```bash
curl -X DELETE "https://vibecode.bitrix24.com/v1/chats/123/users" \
  -H "X-Api-Key: YOUR_APP_KEY" \
  -H "Authorization: Bearer USER_SESSION_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "userId": 42 }'
```

### JavaScript — personal key

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/chats/123/users', {
  method: 'DELETE',
  headers: {
    'X-Api-Key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ userId: 42 }),
})

const { success, data } = await res.json()
console.log('Removed:', data)
```

### JavaScript — OAuth application

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/chats/123/users', {
  method: 'DELETE',
  headers: {
    'X-Api-Key': 'YOUR_APP_KEY',
    'Authorization': 'Bearer USER_SESSION_TOKEN',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ userId: 42 }),
})

const { success, data } = await res.json()
```

## Response fields

| Field | Type | Description |
|------|-----|---------|
| `success` | boolean | Always `true` on success |
| `data` | boolean | `true` when removed successfully |

## Response example

```json
{
  "success": true,
  "data": true
}
```

## Error response example

422 — the user is not a member of the chat:

```json
{
  "success": false,
  "error": {
    "code": "BITRIX_ERROR",
    "message": "The specified user is not a member of the chat"
  }
}
```

## Errors

| HTTP | Code | Description |
|------|-----|---------|
| 403 | `SCOPE_DENIED` | The API key does not have the `im` scope |
| 401 | `TOKEN_MISSING` | The API key has no configured Bitrix24 tokens |
| 422 | `BITRIX_ERROR` | Bitrix24 returned an error — the text is in the `message` field (for example, the user is not a member of the chat or no permission) |
| 502 | `BITRIX_UNAVAILABLE` | Bitrix24 is unavailable or returned a server error |

Full list of common API errors — [Errors](/docs/errors).

## Known specifics

**Removal one at a time.** The endpoint accepts a single `userId` (a number), not an array. To remove several members, call the method for each one separately.

## See also

- [Chat members](/docs/chats/members)
- [List members](/docs/chats/members/list)
- [Add members](/docs/chats/members/add)
- [Permission management](/docs/chats/management/owner)
- [Chats](/docs/chats)