# Certn API Documentation

> Source: https://centric-api-docs.certn.co/#check-GAP_REFERENCE_1

### Gap Reference

**Gap Reference**

**Identifier:** `GAP_REFERENCE_1`

Reference verification for a gap in employment/education history.

### Required Input Claims

- `name`
- `gap_history`

### Response

**201 Created** — Successfully ordered. Use the returned `id` to retrieve the full case via `GET /api/public/cases/{id}/`.

### Error codes

| Status | Type | Description |
|--------|------|-------------|
| 400 | `validation_error` | Invalid request data |
| 401 | `client_error` | Authentication failed |
| 403 | `client_error` | Permission denied |
| 422 | `validation_error` | Request validation failed (e.g. missing required fields) |