curl --request POST \
  --url https://{defaultHost}/v1/fulfillments \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "fulfillment": {
    "order": "c3236ded-66d9-407a-af1c-45d74f8c751a",
    "fulfillment_items": [
      {
        "line_item": "cc913018-1729-4057-ad3e-95db85ea512d",
        "quantity": 1
      }
    ],
    "shipments": [
      {
        "shipping_provider": "a677f7d8-f918-4111-afd9-155fc8061672",
        "inherit_weight": false,
        "weight": 2,
        "weight_unit": "lb",
        "dimensions": {
          "length": 10,
          "width": 8,
          "height": 5,
          "unit": "in"
        },
        "shipping_date": "2026-05-05",
        "from_contact": {
          "name": "Sender Name",
          "email": "sender@example.com",
          "phone": "555-123-4567",
          "address": {
            "line_1": "123 Main St",
            "city": "New York",
            "state": "NY",
            "postal_code": "10001",
            "country": "US"
          }
        },
        "to_contact": {
          "name": "Receiver Name",
          "email": "receiver@example.com",
          "phone": "555-987-6543",
          "address": {
            "line_1": "456 Oak Ave",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "90001",
            "country": "US"
          }
        }
      }
    ]
  }
}
'

{
  "id": "61fc661b-f9a8-487b-95ab-c568036b7201",
  "object": "fulfillment",
  "notifications_enabled": false,
  "number": "0000-F1",
  "shipment_status": "unshipped",
  "g_weight": 0,
  "order": "c3236ded-66d9-407a-af1c-45d74f8c751a",
  "created_at": 1778010881,
  "updated_at": 1778010881
}