# Update a specific Channel.

**POST /v3/Services/{ServiceSid}/Channels/{Sid}**

Update a specific Channel.
A Channel resource represents a chat/conversation channel with an ordered list of messages and a participant roster.

## Servers
- https://chat.twilio.com: https://chat.twilio.com ()


## Authentication methods
- Account sid auth token


## Parameters
### Headers
- **X-Twilio-Webhook-Enabled** (string)
  The X-Twilio-Webhook-Enabled HTTP request header

### Path parameters
- **ServiceSid** (string)
  The unique SID identifier of the Service.
- **Sid** (string)
  A 34 character string that uniquely identifies this Channel.


### Body: application/x-www-form-urlencoded (object)

- **Type** (string)
  The visibility of the channel. Can be: `public` or `private`.
- **MessagingServiceSid** (string)
  The unique ID of the [Messaging Service](https://www.twilio.com/docs/messaging/api/service-resource) this channel belongs to.


## Responses
### 200
OK
#### Headers
- **Access-Control-Allow-Origin** (string)
  Specify the origin(s) allowed to access the resource
- **Access-Control-Allow-Methods** (string)
  Specify the HTTP methods allowed when accessing the resource
- **Access-Control-Allow-Headers** (string)
  Specify the headers allowed when accessing the resource
- **Access-Control-Allow-Credentials** (boolean)
  Indicates whether the browser should include credentials
- **Access-Control-Expose-Headers** (string)
  Headers exposed to the client

#### Body: application/json (object)
- **sid** (string | null)
  The unique string that we created to identify the Channel resource.
- **account_sid** (string | null)
  The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the Channel resource.
- **service_sid** (string | null)
  The SID of the [Service](https://www.twilio.com/docs/chat/rest/service-resource) the Channel resource is associated with.
- **friendly_name** (string | null)
  The string that you assigned to describe the resource.
- **unique_name** (string | null)
  An application-defined string that uniquely identifies the resource. It can be used to address the resource in place of the resource's `sid` in the URL.
- **attributes** (string | null)
  The JSON string that stores application-specific data. If attributes have not been set, `{}` is returned.
- **type** (string)
  The visibility of the channel. Can be: `public` or `private`.
- **date_created** (string(date-time) | null)
  The date and time in GMT when the resource was created specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format.
- **date_updated** (string(date-time) | null)
  The date and time in GMT when the resource was last updated specified in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format.
- **created_by** (string | null)
  The `identity` of the User that created the channel. If the Channel was created by using the API, the value is `system`.
- **members_count** (integer)
  The number of Members in the Channel.
- **messages_count** (integer)
  The number of Messages that have been passed in the Channel.
- **messaging_service_sid** (string | null)
  The unique ID of the [Messaging Service](https://www.twilio.com/docs/messaging/api/service-resource) this channel belongs to.
- **url** (string(uri) | null)
  The absolute URL of the Channel resource.


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