Buscar una factura por external ID

Busca una única factura por su external_id (enviado en el body JSON), la clave de integración que la mapea a un registro en un sistema de terceros (ERP/CRM/e-commerce).

Distinto del número fiscal y del id.
Devuelve la factura coincidente o 404 invoice_not_found si ninguna factura usa ese external_id dentro de tu empresa.

Authorization

AuthorizationBearer <token>

Tu API key como token Bearer: fact_live_… en producción, fact_test_… en sandbox. Consulta la guía de autenticación.

En: header

Parámetros de ruta

company*string

Identificador público (UUID v7) de la empresa. Obtenlo de GET /v1/me (data.scope[].id).

Formatouuid

Fija la versión de la API (YYYY-MM-DD, versionado por fecha estilo Stripe) para esta petición; omítelo para usar la versión fijada de la clave, o la última si no hay ninguna. Versión no soportada → 400 unsupported_api_version; malformada → 400 parameter_invalid_format. La versión efectiva se refleja en la cabecera de respuesta Factuarea-Version. Consulta la guía de Versioning.

Formatodate

Cuerpo de la petición

application/json

Definiciones de TypeScript

Usa el tipo request body en TypeScript.

external_id*string

Longitudlength <= 100

Cuerpo de la respuesta

`application/json`

Ejemplo de petición

const apiKey = process.env.FACTUAREA_API_KEY;if (!apiKey) throw new Error("Set FACTUAREA_API_KEY");const response = await fetch("https://api.factuarea.com/v1/companies/01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a01/invoices/find-by-external-id", {  method: "POST",  headers: { Authorization: `Bearer ${apiKey}`, ...{"Accept":"application/json","Content-Type":"application/json"} },  body: JSON.stringify({  "external_id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a01"}),});if (!response.ok) throw new Error(await response.text());if (response.status !== 204) console.log(await response.json());

Ejemplo de respuesta

{
  "data": {
    "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a42",
    "object": "invoice",
    "number": "FAC-2026-00042",
    "is_number_assigned": true,
    "type": "F1",
    "series": {
      "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b02",
      "code": "FAC-2026"
    },
    "client": {
      "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a01",
      "name": "Acme Soluciones SL"
    },
    "status": "paid",
    "price_list_id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b10",
    "price_list_name": "Tarifa profesional 2026",
    "issued_on": "2026-03-15",
    "due_on": "2026-04-14",
    "operation_on": null,
    "subtotal": "1000.00",
    "taxes_total": "210.00",
    "total_vat": "210.00",
    "total_retention": "0.00",
    "total_surcharge": "0.00",
    "total": "1210.00",
    "total_disbursements": "0.00",
    "total_to_pay": "1210.00",
    "currency": "EUR",
    "notes": "Servicios profesionales marzo 2026.",
    "external_id": "ERP-2026-0042",
    "lines": [
      {
        "object": "invoice_line",
        "description": "Consultoría técnica (10 h)",
        "additional_description": "Auditoría inicial e informe de mejoras",
        "product": {
          "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b03",
          "name": "Consultoría técnica (hora)"
        },
        "quantity": 10,
        "unit_price": "100.0000",
        "tax_rate": 21,
        "retention_rate": 0,
        "surcharge_rate": 0,
        "discount_percent": 0,
        "subtotal": "1000.00",
        "taxes": "210.00",
        "total": "1210.00",
        "indirect_tax_regime": "iva",
        "variant": null,
        "presentation": null,
        "item_kind": "service",
        "commercial_unit_code": "HUR",
        "base_unit_code": "HUR",
        "conversion_factor": "1.000000",
        "base_quantity": "10.0000",
        "counted_quantity": null,
        "counted_unit": null,
        "price_list_id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8b10",
        "price_list_name": "Tarifa profesional 2026",
        "price_source": "price_list",
        "price_unit_code": "HUR",
        "configuration": null,
        "options": [],
        "price_semantics": "per_commercial_unit",
        "price_adjustment_total": "0.0000",
        "option_adjustments_absorbed": false,
        "regime_key": null,
        "exemption_reason": null,
        "aeat_tax_code": "S1",
        "line_type": "NORMAL",
        "source_invoice_reference": null,
        "source_invoice_ids": null,
        "unit": null,
        "exemption_reason_text": null,
        "pack_group": null,
        "id": "019e0000-0000-7000-8000-000000000001",
        "business_references": null,
        "delivery_notes_references": [],
        "sequence_number": null
      }
    ],
    "metadata": {
      "order_id": "PO-2026-0042"
    },
    "tags": [
      "consultoria",
      "cliente-vip"
    ],
    "custom_fields": [
      {
        "field": "centro_coste",
        "value": "CC-2026-001"
      },
      {
        "field": "numero_pedido",
        "value": "PO-2026-0042"
      }
    ],
    "operation_regime": "general",
    "exemption_reason": null,
    "legal_mentions": [],
    "exclude_347": false,
    "verifactu_status": "accepted",
    "paid_amount": "1210.00",
    "pending_amount": "0.00",
    "payments": {
      "detail": [
        {
          "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a90",
          "object": "payment",
          "invoice_id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a42",
          "amount": "1210.00",
          "payment_date": "2026-03-20",
          "payment_method": "bank_transfer",
          "payment_method_text": "Transferencia bancaria",
          "reference": "TRF-2026-0042",
          "notes": null,
          "is_reversed": false,
          "reversed_at": null,
          "reversal_reason": null,
          "reversal_reason_text": null,
          "reversal_note": null,
          "created_at": "2026-03-20T10:30:00Z",
          "updated_at": "2026-03-20T10:30:00Z"
        }
      ],
      "total": "1210.00",
      "pending": "0.00"
    },
    "is_corrective": false,
    "corrective": null,
    "payment": {
      "method": "bank_transfer",
      "reference": "TRF-2026-0042",
      "date": "2026-03-20"
    },
    "public_link": {
      "object": "public_link",
      "url": "https://app.factuarea.com/d/01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a42",
      "id": "01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a42",
      "enabled": true,
      "expires_at": "2026-09-15T23:59:59Z",
      "max_days": 120
    },
    "substituted_by": null,
    "recurring": null,
    "paid_recorded_at": "2026-03-20T10:30:00Z",
    "paid_date": "2026-03-20",
    "issued_at": "2026-03-15T11:45:00Z",
    "sent_at": "2026-03-15T11:47:12Z",
    "sent_via": "email",
    "is_sent": true,
    "voided_at": null,
    "void_reason": null,
    "scheduled_for": null,
    "scheduled_action": null,
    "channel": null,
    "source_store_id": null,
    "origin": "native",
    "created_at": "2026-03-15T11:30:00Z",
    "updated_at": "2026-03-20T10:30:00Z",
    "business_references": null,
    "invoicing_period": null,
    "legal_literals": [],
    "administrative_snapshot": null,
    "administrative_override": null,
    "administrative_centres": null,
    "administrative_version": 1,
    "administrative_revision_id": null,
    "structured_source_snapshots": [],
    "payment_terms": null,
    "payment_terms_version": 0,
    "payment_terms_source": "none",
    "payment_terms_currency": "EUR",
    "payment_terms_captured_at": null,
    "payment_terms_frozen_at": null,
    "pdf_output_state": {
      "state": null,
      "presentation_id": null,
      "artifact_id": null,
      "format": null,
      "variant": null,
      "unavailable_reason": null,
      "error": null,
      "retry_after": null,
      "download_url": null
    },
    "presentation": null
  }
}

Se envió la cabecera X-Active-Profile retirada

{
  "error": {
    "type": "invalid_request_error",
    "code": "parameter_unknown",
    "subcode": "retired_active_profile_header",
    "message": "La cabecera 'X-Active-Profile' fue retirada de la API v1: la empresa efectiva se indica en el segmento de empresa de la ruta.",
    "param": "X-Active-Profile",
    "doc_url": "https://docs.factuarea.com/guides/errors#parameter_unknown",
    "request_id": "req_01J8Y3M2Q40000000000000001"
  }
}

Cabecera Factuarea-Version malformada

{
  "error": {
    "type": "invalid_request_error",
    "code": "parameter_invalid_format",
    "message": "El header 'Factuarea-Version' debe tener formato YYYY-MM-DD.",
    "param": "Factuarea-Version",
    "doc_url": "https://docs.factuarea.com/guides/errors#parameter_invalid_format",
    "request_id": "req_01J8Y3M2Q40000000000000002"
  }
}

Factuarea-Version no admitida

{
  "error": {
    "type": "invalid_request_error",
    "code": "unsupported_api_version",
    "message": "La versión de API '2020-01-01' no está soportada.",
    "param": "Factuarea-Version",
    "doc_url": "https://docs.factuarea.com/guides/errors#unsupported_api_version",
    "request_id": "req_01J8Y3M2Q40000000000000003"
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "missing_api_key",
    "message": "Falta header Authorization o X-API-Key.",
    "doc_url": "https://docs.factuarea.com/guides/errors#missing_api_key",
    "request_id": "req_30cf1d3297fe90f9ab1b95f688"
  }
}

POST /v1/companies/{company}/invoices/find-by-external-id · 403 insufficient_scope

{
  "error": {
    "type": "authorization_error",
    "code": "insufficient_scope",
    "message": "Esta operación requiere el scope 'invoices:read'. Tu API key solo tiene los scopes: ninguno.",
    "doc_url": "https://docs.factuarea.com/guides/errors#insufficient_scope",
    "request_id": "req_7d158d6a458abf557604ee5287"
  }
}

Empresa desactivada

{
  "error": {
    "type": "authorization_error",
    "code": "company_inactive",
    "message": "Esta empresa está desactivada. Actívala para operar.",
    "param": "company",
    "doc_url": "https://docs.factuarea.com/guides/errors#company_inactive",
    "request_id": "req_01J8Y3M2Q40000000000000005"
  }
}

Recurso no encontrado

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "El recurso solicitado no existe o pertenece a otra empresa.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#resource_not_found",
    "request_id": "req_01HKQS5NEQ6X1R4N9B0C5DWTPG"
  }
}

Empresa no encontrada o fuera del alcance de la API key

{
  "error": {
    "type": "not_found_error",
    "code": "profile_not_found",
    "message": "La empresa indicada no existe o no está en el ámbito de tu credencial.",
    "param": "company",
    "doc_url": "https://docs.factuarea.com/guides/errors#profile_not_found",
    "request_id": "req_01J8Y3M2Q40000000000000004"
  }
}

POST /v1/companies/{company}/invoices/find-by-external-id · 422 invalid_param_value

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_param_value",
    "message": "El campo external_id es obligatorio.",
    "param": "external_id",
    "errors": [
      {
        "param": "external_id",
        "code": "parameter_missing",
        "message": "El campo external_id es obligatorio."
      }
    ],
    "doc_url": "https://docs.factuarea.com/guides/errors#invalid_param_value",
    "request_id": "req_98cc908acba92515fc8f26713e"
  }
}

Idempotency key reutilizada con un payload distinto

{
  "error": {
    "type": "idempotency_error",
    "code": "idempotency_key_reused",
    "message": "La Idempotency-Key 'order-2026-0001' ya se usó con un payload distinto.",
    "param": "Idempotency-Key",
    "doc_url": "https://docs.factuarea.com/guides/errors#idempotency_key_reused",
    "request_id": "req_01J8Y3M2Q40000000000000007"
  }
}

Formato de Idempotency-Key no válido

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_param_format",
    "message": "La Idempotency-Key debe tener entre 1 y 255 caracteres ASCII printable.",
    "param": "Idempotency-Key",
    "doc_url": "https://docs.factuarea.com/guides/errors#invalid_param_format",
    "request_id": "req_01J8Y3M2Q40000000000000008"
  }
}

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limit_exceeded",
    "message": "Has excedido el límite de requests permitido. Reintenta más tarde.",
    "doc_url": "https://docs.factuarea.com/guides/errors#rate_limit_exceeded",
    "request_id": "req_22aadcfa4156eb8687a14c58ba"
  }
}

{
  "error": {
    "type": "api_error",
    "code": "internal_error",
    "message": "Algo se rompió en nuestro lado al procesar la petición. La condición no la provoca tu payload.",
    "doc_url": "https://docs.factuarea.com/guides/errors#internal_error",
    "request_id": "req_c3ee1fbe5bcdce7625734e9b32"
  }
}

Buscar una factura por external ID

Authorization

Parámetros de ruta

Headers

Cuerpo de la petición

Cuerpo de la respuesta

200application/json

400application/json

401application/json

403application/json

404application/json

422application/json

429application/json

500application/json

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`