OrderCreate

Body of POST /orders. Unknown keys are rejected with the list of accepted ones, so a typo fails loudly instead of being ignored. There is NO payment_method_id / shipping_id: the API exposes those ids on no resource, so a client would have nowhere to read them from. The order inherits the payment method and shipping saved on the CUSTOMER — exactly like the dashboard's on-behalf checkout. Prices, promos, surcharges, the frozen IVA and the stock decrement are resolved server-side by the same pipeline the manager checkout uses. The request states WHAT to order; the server decides what it costs.

{
  "customer_id": "8801",
  "items": [
    { "product_id": "REM-001", "option_id": "555", "quantity": 3 },
    { "product_id": "9202", "quantity": 1 }
  ],
  "observaciones": "Entregar por la mañana",
  "internal_notes": "Pedido cargado por el ERP",
  "notify_customer": true,
  "shipping_address": {
    "street_address": "Av. Corrientes 1234",
    "city": "CABA",
    "region": "Buenos Aires",
    "postal_code": "C1043",
    "country": "Argentina"
  }
}