Estado de envío y subestado

Para obtener una descripción de todos los posibles estados y subestados de envío se puede hacer una llamada a nuestro recurso shipment_statuses . Ejemplo:
curl -X GET https://api.mercadolibre.com/shipment_statuses
Respuesta:
{
    "id": "to_be_agreed",
    "name": "To be agreed",
    "substatuses": [
    ]
  },
  {
    "id": "pending",
    "name": "Pending",
    "substatuses": [
      {
        "id": "cost_exceeded",
        "name": "Cost exceeded"
      }
    ]
  },
  {
    "id": "handling",
    "name": "Handling",
    "substatuses": [
      {
        "id": "regenerating",
        "name": "Regenerating"
      },
      {
        "id": "waiting_for_label_generation",
        "name": "Waiting for label generation"
      }
    ]
  },
  {
    "id": "ready_to_ship",
    "name": "Ready to ship",
    "substatuses": [
      {
        "id": "ready_to_print",
        "name": "Ready to print"
      },
      {
        "id": "invoice_pending",
        "name": "Invoice pending"
      },
      {
        "id": "printed",
        "name": "Printed"
      },
      {
        "id": "in_pickup_list",
        "name": "In pikcup list"
      },
      {
        "id": "ready_for_pkl_creation",
        "name": "Ready for pkl creation"
      },
      {
        "id": "ready_for_pickup",
        "name": "Ready for pickup"
      },
      {
        "id": "picked_up",
        "name": "Picked up"
      },
      {
        "id": "stale",
        "name": "Stale Ready To Ship"
      },
      {
        "id": "in_hub",
        "name": "In hub"
      },
      {
        "id": "measures_ready",
        "name": "Measures and weight ready"
      },
      {
        "id": "waiting_for_carrier_authorization",
        "name": "Waiting for carrier authorization"
      },
      {
        "id": "authorized_by_carrier",
        "name": "Authorized by carrier"
      },
      {
        "id": "in_plp",
        "name": "In PLP"
      }
    ]
  },
  {
    "id": "shipped",
    "name": "Shipped",
    "substatuses": [
      {
        "id": "delayed",
        "name": "Delayed"
      },
      {
        "id": "waiting_for_withdrawal",
        "name": "Waiting for withdrawal"
      },
      {
        "id": "contact_with_carrier_required",
        "name": "Contact with carrier required"
      },
      {
        "id": "receiver_absent",
        "name": "Receiver absent"
      },
      {
        "id": "reclaimed",
        "name": "Reclaimed"
      },
      {
        "id": "not_localized",
        "name": "Not localized"
      },
      {
        "id": "forwarded_to_third",
        "name": "Forwarded to third party"
      },
      {
        "id": "soon_deliver",
        "name": "Soon deliver"
      },
      {
        "id": "refused_delivery",
        "name": "Delivery refused"
      },
      {
        "id": "bad_address",
        "name": "Bad address"
      },
      {
        "id": "negative_feedback",
        "name": "Stale shipped with negative feedback by buyer"
      },
      {
        "id": "need_review",
        "name": "Need to review carrier status to understand what happened"
      },
      {
        "id": "stale",
        "name": "Stale shipped"
      }
    ]
  },
  {
    "id": "delivered",
    "name": "Delivered",
    "substatuses": [
      {
        "id": "damaged",
        "name": "damaged"
      },
      {
        "id": "fulfilled_feedback",
        "name": "Fulfilled by buyer feedback"
      },
      {
        "id": "no_action_taken",
        "name": "No action taken by buyer"
      },
      {
        "id": "double_refund",
        "name": "Double Refund"
      }
    ]
  },
  {
    "id": "not_delivered",
    "name": "Not delivered",
    "substatuses": [
      {
        "id": "returning_to_sender",
        "name": "Returning to sender"
      },
      {
        "id": "retained",
        "name": "Retained"
      },
      {
        "id": "stolen",
        "name": "Stolen"
      },
      {
        "id": "returned",
        "name": "Returned"
      },
      {
        "id": "receiver_absent",
        "name": "Receiver absent"
      },
      {
        "id": "confiscated",
        "name": "confiscated"
      },
      {
        "id": "to_review",
        "name": "Closed shipment"
      },
      {
        "id": "destroyed",
        "name": "Destroyed"
      },
      {
        "id": "waiting_for_withdrawal",
        "name": "Waiting for withdrawal"
      },
      {
        "id": "negative_feedback",
        "name": "Stale shipped forced to not delivered due to negative feedback by buyer"
      },
      {
        "id": "claimed_me",
        "name": "Stale shipped with claim that was forced to not delivered"
      },
      {
        "id": "not_localized",
        "name": "Not localized"
      },
      {
        "id": "double_refund",
        "name": "Double Refund"
      }
    ]
  },
  {
    "id": "not_verified",
    "name": "Not verified",
    "substatuses": [
    ]
  },
  {
    "id": "cancelled",
    "name": "Cancelled",
    "substatuses": [
    ]
  },
  {
    "id": "closed",
    "name": "Closed",
    "substatuses": [
    ]
  },
  {
    "id": "error",
    "name": "Error",
    "substatuses": [
    ]
  },
  {
    "id": "active",
    "name": "Active",
    "substatuses": [
    ]
  },
  {
    "id": "not_specified",
    "name": "Not specified",
    "substatuses": [
    ]
  },
  {
    "id": "stale_ready_to_ship",
    "name": "Stale ready to ship",
    "substatuses": [
    ]
  },
  {
    "id": "stale_shipped",
    "name": "Stale shipped",
    "substatuses": [
    ]
  }

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