Invoices

Find an invoice by external ID

Look up a single invoice by its external_id (sent in the JSON body), the integration key that maps it to a record in a third-party system (ERP/CRM/e-commerce). Distinct from the fiscal number and the id. Returns the matching invoice or 404 invoice_not_found if no invoice uses that external_id within your company.

post/companies/{company}/invoices/find-by-external-id

Request

  • Base URL: https://api.factuarea.com/v1
  • URL: https://api.factuarea.com/v1/companies/{company}/invoices/find-by-external-id
  • Auth: one of:
    • HTTP bearer
    • API key in header X-API-Key

Path parameters

companystring uuid required

Public identifier (UUID v7) of the company. Get it from GET /v1/me (data.scope[].id).

Headers

Factuarea-Versionstring date
Example:2026-06-01

Pin the API version (YYYY-MM-DD, Stripe-style date versioning) for this request; omit to use the key's pinned version, or the latest if none. Unsupported version → 400 unsupported_api_version; malformed → 400 parameter_invalid_format. The effective version is echoed in the Factuarea-Version response header. See the Versioning guide.

Request body

external_idstring required

Response

Example response

{
  "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",
        "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,
        "indirect_tax_regime": "iva",
        "aeat_tax_code": "S1",
        "line_type": "NORMAL"
      }
    ],
    "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"
  }
}

Changes

No recorded changes to this operation across all 1 revision of this API.