# `PUT /article/{sku}/eans`

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

Replace article EANs by SKU

Replace-all EANs for the article. EANs must be non-empty unique strings;
empty array clears all EANs. Returns the same shape as GET by SKU.


## Path parameters

| Param | Required | Type | Description |
|-------|----------|------|-------------|
| `sku` | yes | string |  |

## Body (JSON)

| Field | Required | Type | Description |
|-------|----------|------|-------------|
| `eans` | yes | string[] |  |

```json
{
  "eans": [
    "4001234567890"
  ]
}
```

## Signals

On success, emits SSE signal: `article-<sku>` (see [`GET /events`](../events.md)).

## Response `200`

Updated article detail

```json
{
  "article": {
    "id": 1,
    "sku": "…",
    "name": "…",
    "slug": "…",
    "desc": "…",
    "seo": "…",
    "track_stock": true,
    "unitamount": 1,
    "weight": 1,
    "unit": {
      "si": "…",
      "basesi": "…",
      "basesifactor": 1,
      "symbol": "…",
      "name": "…"
    },
    "brand": {
      "id": 1,
      "name": "…",
      "fullHash": "…",
      "thumbW": 1,
      "thumbH": 1,
      "thumbHash": "…"
    },
    "categoryIds": [
      1
    ],
    "photos": [
      {
        "sort": 1,
        "fullHash": "…",
        "fullW": 1,
        "fullH": 1,
        "fullSize": 1,
        "thumbW": 1,
        "thumbH": 1,
        "thumbHash": "…"
      }
    ],
    "eans": [
      "…"
    ],
    "prices": [
      {
        "minmultiplier": 1,
        "net": 1,
        "taxRate": 1,
        "customergroupId": 1
      }
    ],
    "suppliers": [
      {
        "id": 1,
        "articleId": 1,
        "entityId": 1,
        "supplierName": "…",
        "sku": "…",
        "pu": 1,
        "stock": 1,
        "sort": 1,
        "priceId": 1,
        "price": {
          "net": 1,
          "taxId": 1,
          "taxRate": 1
        }
      }
    ]
  }
}
```

## Errors

| Status | Description |
|--------|-------------|
| 400 | Invalid eans — `{"error":"…"}` |
| 401 | Unauthorized — `{"error":"…"}` |
| 403 | Not authorized — `{"error":"…"}` |
| 404 | Article not found — `{"error":"…"}` |
| 409 | EAN already in use — `{"error":"…"}` |

---

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