# Error: channel_not_supported

> This sender cannot send on that channel

Source: https://docs.vlayers.ai/errors/channel_not_supported

- HTTP status: 409
- Retry: No: fix the request first
- details: `channel`.

## What happened

This sender cannot send on that channel.

## Why

The channel is not one this workspace can use, or the sender named in `from` (a number, a Binding) cannot send on it.

## How to fix it

List what the workspace can use with `GET /v1/channels`, and send from a sender on that channel.

## Example response

```json
{
  "error": "channel_not_supported",
  "message": "This sender cannot send on that channel.",
  "requestId": "req-8f2c1d4b",
  "retryable": false,
  "docs": "https://docs.vlayers.ai/errors/channel_not_supported"
}
```