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

# Errors

> Error envelope and complete type reference.

Every error is a single JSON shape:

```json theme={null}
{
  "error": {
    "type": "phone_invalid",
    "message": "phone number must be in E.164 format (e.g. +2348012345678)",
    "field": "to"
  }
}
```

See the [Errors concept](/concepts/errors) for every type, its HTTP status, and how to fix it.