# Update message

**POST /v1/Services/{ServiceSid}/Channels/{ChannelSid}/Messages/{Sid}**


Individual chat messages

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


## Authentication methods
- Account sid auth token


## Parameters

### Path parameters
- **ServiceSid** (string)
  The SID of the [Service](https://www.twilio.com/docs/api/chat/rest/services) to update the resource from.
- **ChannelSid** (string)
  The unique ID of the [Channel](https://www.twilio.com/docs/api/chat/rest/channels) the message belongs to. Can be the Channel's `sid` or `unique_name`.
- **Sid** (string)
  The Twilio-provided string that uniquely identifies the Message resource to update.


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

- **Body** (string)
  The message to send to the channel. Can also be an empty string or `null`, which sets the value as an empty string. You can send structured data in the body by serializing it as a string.
- **Attributes** (string)
  A valid JSON string that contains application-specific data.


## 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 Message resource.
- **account_sid** (string | null)
  The SID of the [Account](https://www.twilio.com/docs/api/rest/account) that created the Message resource.
- **attributes** (string | null)
  The JSON string that stores application-specific data. **Note** If this property has been assigned a value, it's only  displayed in a FETCH action that returns a single resource; otherwise, it's null. If the attributes have not been set, `{}` is returned.
- **service_sid** (string | null)
  The SID of the [Service](https://www.twilio.com/docs/api/chat/rest/services) the resource is associated with.
- **to** (string | null)
  The SID of the [Channel](https://www.twilio.com/docs/chat/api/channels) that the message was sent to.
- **channel_sid** (string | null)
  The unique ID of the [Channel](https://www.twilio.com/docs/api/chat/rest/channels) the Message resource belongs to.
- **date_created** (string(date-time) | null)
  The date and time in GMT when the resource was created specified in [RFC 2822](http://www.ietf.org/rfc/rfc2822.txt) format.
- **date_updated** (string(date-time) | null)
  The date and time in GMT when the resource was last updated specified in [RFC 2822](http://www.ietf.org/rfc/rfc2822.txt) format.
- **was_edited** (boolean | null)
  Whether the message has been edited since it was created.
- **from** (string | null)
  The [identity](https://www.twilio.com/docs/api/chat/guides/identity) of the message's author. The default value is `system`.
- **body** (string | null)
  The content of the message.
- **index** (integer)
  The index of the message within the [Channel](https://www.twilio.com/docs/chat/api/channels).
- **url** (string(uri) | null)
  The absolute URL of the Message resource.


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