> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stateset.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Add manifest contents while packing, using native order allocation guards.

> Manifest item added

> [!WARNING]
>
> **Confirm your deployment before running this request.** This page describes an API contract;
> a published reference does not establish hosted availability. Check the dated
> [host report](/api-reference/hosts) and obtain your deployment URL and credentials.
> Replace the example host if your provisioned service uses a different URL.

### Path parameters

**id** `string` *required*

Shipment ID (UUID)

### Query parameters

**expected\_version** `integer (int32)`

Version read from the shipment; stale edits return 409.

### Request body

`CreateShipmentItemRequest`

**name** `string` *required*

**order\_item\_id** `string,null (uuid)`

**product\_id** `string,null (uuid)`

**quantity** `integer (int32)` *required*

Minimum: `1`. Maximum: `2147483647`.

**sku** `string` *required*

### Response

`ShipmentItemResponse`

**id** `string (uuid)` *required*

**name** `string` *required*

**order\_item\_id** `string,null (uuid)`

**product\_id** `string,null (uuid)`

**quantity** `integer (int32)` *required*

**shipment\_id** `string (uuid)` *required*

**sku** `string` *required*

### Status codes

| Code | Meaning |
| - | - |
| `201` | Manifest item added |
| `400` | Malformed or unknown version precondition |
| `404` | Shipment not found |
| `409` | Stale shipment version |
| `422` | Invalid allocation or shipment no longer packing |

### Using this contract

Read the [source OpenAPI document](/spec/stateset-icommerce.json) for declared schemas and alternatives.
This page also includes documented corrections from the [spec overlays](https://github.com/stateset/docs/tree/main/spec/overlays).
Example IDs and values are illustrative; replace them with records from your workspace.

```bash cURL theme={null}
curl --silent --show-error --fail-with-body --request POST \
  --url 'https://api.stateset.com/api/v1/shipments/{id}/items' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "Two-Person Tent",
  "order_item_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "product_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "quantity": 2,
  "sku": "SKU-TENT-2P-GRN"
}'
```

```json 201 theme={null}
{
  "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "name": "Two-Person Tent",
  "order_item_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "product_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "quantity": 2,
  "shipment_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "sku": "SKU-TENT-2P-GRN"
}
```


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