> ## Documentation Index
> Fetch the complete documentation index at: https://docs.staging.relayapp.im/llms.txt
> Use this file to discover all available pages before exploring further.

# Error 1004: Handle is not in the Chat

> Resolve Relay error 1004.

The mentioned Handle is not an active Contact in this Chat.

## Response

```json theme={null}
{
  "error": {
    "status": 400,
    "code": 1004,
    "message": "The mentioned Handle is not an active Contact in this Chat.",
    "doc_url": "https://docs.relayapp.im/error/codes/1xxx/1004"
  },
  "success": false,
  "trace_id": "b923d71e50be43ba9e0fe1e34a7676c2"
}
```

## Fix

1. List the Chat and confirm the Handle is active.
2. Use structured mention fields only for a current group Contact.

## Retry

Do not retry the same request unchanged.

## Related

* [Error overview](/error)
* [Debugging](/guides/platform/debugging)