Specifies relevant sources of the error, if any.
| Name | Type | Description | Notes |
|---|---|---|---|
| Parameter | string | The relevant URI query parameter causing the error | [optional] |
| Field | string | The request body field that led to the error | [optional] |
| Header | string | The header field that contributed to the error | [optional] |
| Reference | string | A resource ID or path linked to the error | [optional] |