invalid_field_format

HTTP 400 · type invalid_request_error

Format constraint violated.

When it fires

A field's value is structurally invalid — wrong format, wrong shape, wrong type.

Recovery

Inspect param and the error message for specifics. Common: missing timezone offset on a datetime, or non-IANA timezone strings.

Example response

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_field_format",
    "message": "Format constraint violated.",
    "doc_url": "https://docs.chronapilot.com/errors/invalid-field-format",
    "request_id": "req_1A2b3C4d5E6f"
  }
}