curl --request POST \
  --url 'https://prod-api.stateset.cloud.stateset.app/api/v1/asns' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "carrier": {
    "carrier_name": "string",
    "service_level": "ground",
    "tracking_number": "1Z999AA10123456784"
  },
  "expected_delivery_date": "2026-08-31T14:22:05Z",
  "items": [
    {
      "product_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
      "product_name": "string",
      "product_sku": "string",
      "quantity": 2,
      "unit_price": 49
    }
  ],
  "notes": "Two-person tent, green — replacement for damaged pole set.",
  "packages": [
    {
      "dimensions": {
        "height": null,
        "length": null,
        "unit": null,
        "width": null
      },
      "package_number": "string",
      "weight": 1.2,
      "weight_unit": "string"
    }
  ],
  "purchase_order_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "shipping_address": {
    "city": "San Francisco",
    "country": "US",
    "postal_code": "94107",
    "state": "CA",
    "street": "548 Market St"
  },
  "supplier_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
  "supplier_name": "string"
}'

{
  "data": {
    "asn_number": "string",
    "created_at": "2026-08-31T14:22:05Z",
    "expected_delivery_date": "2026-08-31T14:22:05Z",
    "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "shipping_address": "548 Market St",
    "status": "pending",
    "supplier_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "supplier_name": "string",
    "updated_at": "2026-08-31T14:22:05Z"
  },
  "errors": [
    "string"
  ],
  "message": "Two-person tent, green — replacement for damaged pole set.",
  "meta": {
    "request_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "timestamp": "2026-08-31T14:22:05Z"
  },
  "success": true
}