El documento que tu camión necesita, emitido antes de que arranque.

curl -X POST https://api.deca2u.com/v1/documents \
  -H "x-api-key: $DECA2U_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "siteId": "M477",
    "externalRef": "M477-52900",
    "data": {
      "contractualShipper": {
        "name": "CEMEX España Operaciones, S.L.U.",
        "taxId": "B12345678",
        "address": "Hernández de Tejada 1, 28027 Madrid"
      },
      "effectiveCarrier": { "name": "Transportes Ruiz, S.L.", "taxId": "B81234567" },
      "location": { "origin": "Planta de Bailén", "destination": "Obra Alcobendas" },
      "goods": { "description": "Hormigón HA-25", "quantity": 8, "unit": "m3" },
      "transportDate": "2026-07-15",
      "vehicle": { "tractorPlate": "1234ABC", "articulated": false }
    }
  }'

const response = await fetch('https://api.deca2u.com/v1/documents', {
  method: 'POST',
  headers: {
    'x-api-key': process.env.DECA2U_KEY,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    siteId: 'M477',
    externalRef: 'M477-52900',
    data: {
      contractualShipper: {
        name: 'CEMEX España Operaciones, S.L.U.',
        taxId: 'B12345678',
        address: 'Hernández de Tejada 1, 28027 Madrid',
      },
      effectiveCarrier: { name: 'Transportes Ruiz, S.L.', taxId: 'B81234567' },
      location: { origin: 'Planta de Bailén', destination: 'Obra Alcobendas' },
      goods: { description: 'Hormigón HA-25', quantity: 8, unit: 'm3' },
      transportDate: '2026-07-15',
      vehicle: { tractorPlate: '1234ABC', articulated: false },
    },
  }),
});

if (!response.ok) throw new Error(`Deca2U respondió ${response.status}`);
const { id, url } = await response.json();

import os
import requests

response = requests.post(
    "https://api.deca2u.com/v1/documents",
    headers={"x-api-key": os.environ["DECA2U_KEY"]},
    json={
        "siteId": "M477",
        "externalRef": "M477-52900",
        "data": {
            "contractualShipper": {
                "name": "CEMEX España Operaciones, S.L.U.",
                "taxId": "B12345678",
                "address": "Hernández de Tejada 1, 28027 Madrid",
            },
            "effectiveCarrier": {"name": "Transportes Ruiz, S.L.", "taxId": "B81234567"},
            "location": {"origin": "Planta de Bailén", "destination": "Obra Alcobendas"},
            "goods": {"description": "Hormigón HA-25", "quantity": 8, "unit": "m3"},
            "transportDate": "2026-07-15",
            "vehicle": {"tractorPlate": "1234ABC", "articulated": False},
        },
    },
    timeout=10,
)
response.raise_for_status()
issued = response.json()

using System.Net.Http.Json;

var http = new HttpClient { BaseAddress = new Uri("https://api.deca2u.com/") };
http.DefaultRequestHeaders.Add("x-api-key", Environment.GetEnvironmentVariable("DECA2U_KEY"));

var response = await http.PostAsJsonAsync("v1/documents", new
{
    siteId = "M477",
    externalRef = "M477-52900",
    data = new
    {
        contractualShipper = new
        {
            name = "CEMEX España Operaciones, S.L.U.",
            taxId = "B12345678",
            address = "Hernández de Tejada 1, 28027 Madrid",
        },
        effectiveCarrier = new { name = "Transportes Ruiz, S.L.", taxId = "B81234567" },
        location = new { origin = "Planta de Bailén", destination = "Obra Alcobendas" },
        goods = new { description = "Hormigón HA-25", quantity = 8, unit = "m3" },
        transportDate = "2026-07-15",
        vehicle = new { tractorPlate = "1234ABC", articulated = false },
    },
});

response.EnsureSuccessStatusCode();
var issued = await response.Content.ReadFromJsonAsync<Issued>();

var body = """
  {
    "siteId": "M477",
    "externalRef": "M477-52900",
    "data": {
      "contractualShipper": {
        "name": "CEMEX España Operaciones, S.L.U.",
        "taxId": "B12345678",
        "address": "Hernández de Tejada 1, 28027 Madrid"
      },
      "effectiveCarrier": { "name": "Transportes Ruiz, S.L.", "taxId": "B81234567" },
      "location": { "origin": "Planta de Bailén", "destination": "Obra Alcobendas" },
      "goods": { "description": "Hormigón HA-25", "quantity": 8, "unit": "m3" },
      "transportDate": "2026-07-15",
      "vehicle": { "tractorPlate": "1234ABC", "articulated": false }
    }
  }
  """;

var request = HttpRequest.newBuilder(URI.create("https://api.deca2u.com/v1/documents"))
    .header("x-api-key", System.getenv("DECA2U_KEY"))
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString(body))
    .build();

var response = HttpClient.newHttpClient()
    .send(request, HttpResponse.BodyHandlers.ofString());

<?php

$payload = [
    'siteId' => 'M477',
    'externalRef' => 'M477-52900',
    'data' => [
        'contractualShipper' => [
            'name' => 'CEMEX España Operaciones, S.L.U.',
            'taxId' => 'B12345678',
            'address' => 'Hernández de Tejada 1, 28027 Madrid',
        ],
        'effectiveCarrier' => ['name' => 'Transportes Ruiz, S.L.', 'taxId' => 'B81234567'],
        'location' => ['origin' => 'Planta de Bailén', 'destination' => 'Obra Alcobendas'],
        'goods' => ['description' => 'Hormigón HA-25', 'quantity' => 8, 'unit' => 'm3'],
        'transportDate' => '2026-07-15',
        'vehicle' => ['tractorPlate' => '1234ABC', 'articulated' => false],
    ],
];

$curl = curl_init('https://api.deca2u.com/v1/documents');
curl_setopt_array($curl, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => ['x-api-key: ' . getenv('DECA2U_KEY'), 'Content-Type: application/json'],
    CURLOPT_POSTFIELDS => json_encode($payload, JSON_UNESCAPED_UNICODE),
]);

$issued = json_decode(curl_exec($curl), true);

{
  "id": "kogBvj2nt_Rxpc9jTj6klA",
  "url": "https://doc.deca2u.com/Cx4Kq8Lm2Nv6Pw0Ry3Ts7A/kogBvj2nt_Rxpc9jTj6klA.pdf",
  "publishedAt": "2026-07-15T06:31:02.144Z",
  "publicUntil": "2026-07-22T23:59:59.000Z",
  "pdfHash": "9f2c…",
  "externalRef": "M477-52900"
}

curl -O https://doc.deca2u.com/Cx4Kq8Lm2Nv6Pw0Ry3Ts7A/kogBvj2nt_Rxpc9jTj6klA.pdf