# `POST /article/{sku}/children`

Protected. Requires a valid session cookie (`credentials: 'include'`).

Create and attach a new child article to a parent article

Automatically generates SKU as parentSku-nextFreeIndex and name from parent name + value. Rejects a caller-supplied sku.

## Path parameters

| Param | Required | Type | Description |
|-------|----------|------|-------------|
| `sku` | yes | string | Parent article SKU |

## Body (JSON)

| Field | Required | Type | Description |
|-------|----------|------|-------------|
| `attributeValueId` | no | integer | ID of existing attribute value for the parent's attribute |
| `value` | no | string | String value to find or create under the parent's attribute |
| `name` | no | string | Optional custom variant name |

```json
{
  "attributeValueId": 1,
  "value": "…",
  "name": "…"
}
```

## Response `201`

Created child article

```json
{
  "sku": "…"
}
```

## Errors

| Status | Description |
|--------|-------------|
| 400 | Parent not configured as parent, missing value, duplicate variant, or sku was provided in body |

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