Derive a draft invoice from an existing one

Authorization

AuthorizationBearer <token>

API Key authentication.

Format: Authorization: Bearer beel_sk_<key>

Scopes: API Keys use the same scopes as OAuth2 tokens. Each key is created with specific scopes that limit which endpoints it can access. The required scope for each endpoint is documented in the operation's security section under OAuth2.

Obtaining Keys: API Keys are managed from the BeeL dashboard

Security: API Keys are secret credentials. Do not share them or store them in source code

In: header

Path Parameters

company_idstring

NIF (company) the operation acts on. It is the only source of context: the account that owns it is derived from it, and the BeeL-Active-Company header plays no part. A NIF you do not reach answers 403, and so does a NIF that does not exist, so the existence of a NIF in another account is never disclosed.

Formatuuid

Header Parameters

Idempotency-Key?string

Idempotency key to prevent duplicates in sensitive operations.

Any unique client-generated string (e.g. an order id). A UUID also works but is not required
Allowed characters: letters, digits, _ and - (max 255 chars)
If the same key is sent twice, the result of the first operation is returned
Keys expire 24 hours after processing

The key is scoped per user and environment, and bound to the request body, so retrying after a network timeout replays the stored response instead of repeating the operation.

Status	Code	When
`400`	`INVALID_IDEMPOTENCY_KEY`	The key breaks the format rules above.
`409`	`IDEMPOTENCY_KEY_PROCESSING`	The first request is still in flight. Wait and retry with the same key.
`409`	`IDEMPOTENCY_KEY_MISMATCH`	The key was already used with a different body. Use a new key.

Match^[a-zA-Z0-9_-]+$

Lengthlength <= 255

Request Body

from_invoice_idstring

modestring

How to derive the new invoice from from_invoice_id.

DUPLICATE: copy an existing invoice into a fresh draft. The source invoice is not modified.

Turning a proforma into an invoice is not a derivation mode: it is a fiscal act that numbers a document and moves the source proforma to a terminal status, so it keeps its own dedicated operation.

Value in"DUPLICATE"

series_id?string

notes?string

Observations for the new draft. Defaults to those of the source invoice.

Lengthlength <= 2000

Response Body

application/json

curl -X POST "https://app.beel.es/api/v1/companies/497f6eca-6276-4993-bfeb-53cbbbba6f08/invoices/derivations" \
  -H "Content-Type: application/json" \
  -d '{
    "from_invoice_id": "550e8400-e29b-41d4-a716-446655440000",
    "mode": "DUPLICATE"
  }'

curl -X POST "https://app.beel.es/api/v1/companies/497f6eca-6276-4993-bfeb-53cbbbba6f08/invoices/derivations" \  -H "Content-Type: application/json" \  -d '{    "from_invoice_id": "550e8400-e29b-41d4-a716-446655440000",    "mode": "DUPLICATE"  }'

{
  "success": true,
  "data": {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "company_id": "7c9e6679-7425-40de-944b-e07fc1f90ae7",
    "invoice_number": "2025/0001",
    "series": {
      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "code": "FAC"
    },
    "number": 1,
    "type": "STANDARD",
    "status": "SCHEDULED",
    "issue_date": "2025-01-15",
    "operation_date": "2025-01-10",
    "due_date": "2025-02-14",
    "valid_until": "2025-02-28",
    "payment_date": "2025-01-20",
    "sent_at": "2025-01-29T18:45:00Z",
    "paid_at": "2025-02-05T10:30:00Z",
    "auto_emit_after": "2025-03-20",
    "scheduled_for": "2025-02-15",
    "scheduled_action": "DRAFT",
    "issuer": {
      "legal_name": "Juan Pérez García",
      "trade_name": "JP Web Development",
      "nif": "12345678A",
      "address": {
        "street": "Calle Mayor, 123",
        "number": "123",
        "floor": "2º A",
        "door": "A",
        "postal_code": "28001",
        "city": "Madrid",
        "province": "Madrid",
        "country": "España",
        "country_code": "ES"
      },
      "phone": "+34 612 345 678",
      "email": "user@example.com",
      "website": "https://beel.es",
      "logo_url": "string",
      "additional_info": "Nº Colegiado: 12345"
    },
    "recipient": {
      "customer_id": "160c0c4b-9966-4dc1-a916-8407eb10d74e",
      "legal_name": "Empresa SL",
      "trade_name": "Empresa",
      "nif": "12345678A",
      "alternative_id": {
        "type": "NIF_IVA",
        "number": "string",
        "country_code": "st"
      },
      "address": {
        "street": "Calle Mayor, 123",
        "number": "123",
        "floor": "2º A",
        "door": "A",
        "postal_code": "28001",
        "city": "Madrid",
        "province": "Madrid",
        "country": "España",
        "country_code": "ES"
      },
      "phone": "+34 612 345 678",
      "email": "user@example.com"
    },
    "lines": [
      {
        "description": "Web application development",
        "quantity": 40,
        "unit": "hours",
        "unit_price": 50,
        "discount_percentage": 10,
        "main_tax": {
          "type": "IVA",
          "percentage": 21,
          "regime_key": "01"
        },
        "equivalence_surcharge_rate": 5.2,
        "irpf_rate": 15,
        "exemption_reason": "EXENTA_ART_20",
        "exemption_reason_text": "string",
        "taxable_base": 1800,
        "line_total": 2178,
        "pricing_mode": "UNIT_PRICE",
        "total_excluding_tax": 1,
        "total_including_tax": 100,
        "line_type": "NORMAL",
        "source_invoice_reference": "string",
        "source_invoice_ids": [
          "497f6eca-6276-4993-bfeb-53cbbbba6f08"
        ]
      }
    ],
    "totals": {
      "taxable_base": 2000,
      "total_discounts": 0,
      "vat_breakdown": [
        {
          "type": 21,
          "base": 2000,
          "amount": 420
        }
      ],
      "total_vat": 420,
      "surcharge_breakdown": [
        {
          "type": 0,
          "base": 0,
          "amount": 0
        }
      ],
      "total_equivalence_surcharge": 0,
      "irpf_breakdown": [
        {
          "type": 0,
          "base": 0,
          "amount": 0
        }
      ],
      "total_irpf": 300,
      "invoice_total": 2120,
      "total_disbursements": 0,
      "total_to_pay": 2120
    },
    "payment_info": {
      "method": "BANK_TRANSFER",
      "iban": "ES1234567890123456789012",
      "swift": "ABCDESMMXXX",
      "payment_term_days": 30
    },
    "notes": "string",
    "void_cause": "VOID_REQUEST",
    "void_reason": "string",
    "voided_at": "2025-01-20T09:12:44Z",
    "rectified_invoice_id": "986b41f8-8e28-4058-9e03-5286d0c42999",
    "source_proforma_id": "5f6c4143-c67e-4332-9fbc-f68d1420128f",
    "converted_invoice_id": "c85716fe-5512-4945-9dc8-daa0106a270b",
    "rectification_reason": "string",
    "recurring_invoice_id": "e6018980-fb8b-475b-a83d-b7bb0aa7423a",
    "recurring_invoice_name": "string",
    "rectification_type": "TOTAL",
    "rectification_code": "R1",
    "external_ref": "ORD-2025-0042",
    "metadata": {
      "external_customer_id": "cus_ULGk8bzIr88aag",
      "external_payment_id": "pi_3NqFGb2eZvKYlo2C0z1234AB",
      "payment_intent_id": "pi_3NqFGb2eZvKYlo2C0z1234AB",
      "charge_id": "ch_3NqFGb2eZvKYlo2C1234CDEF",
      "payment_provider": "STRIPE_CONNECT",
      "external_order_id": "ORD-2025-0042"
    },
    "send_automatically": true,
    "email_config": {
      "recipients": [
        "client@example.com"
      ],
      "cc": [
        "accounting@example.com"
      ],
      "subject": "Invoice 2025/0001 - Development services",
      "message": "Please find attached the requested invoice. We remain at your disposal for any clarification."
    },
    "pdf_download_url": "/v1/companies/7c9e6679-7425-40de-944b-e07fc1f90ae7/invoices/550e8400-e29b-41d4-a716-446655440000/pdf",
    "verifactu": {
      "enabled": false,
      "invoice_hash": "3A5B7C9D1E2F3A4B5C6D7E8F9A0B1C2D3E4F5A6B7C8D9E0F1A2B3C4D5E6F7A8B",
      "chaining_hash": "7F8E9D0C1B2A3F4E5D6C7B8A9F0E1D2C3B4A5F6E7D8C9B0A1F2E3D4C5B6A7F8",
      "registration_number": "VERIFACTU2025000001",
      "qr_url": "https://verifactu.agenciatributaria.gob.es/v?id=ABC123XYZ",
      "qr_base64": "iVBORw0KGgoAAAANSUhEUgAAAMgAAADI...",
      "registered_at": "2019-08-24T14:15:22Z",
      "submission_status": "ACCEPTED",
      "skip_reason": "CONFIG_DISABLED",
      "error_code": "3000",
      "error_message": "Factura ya existe en el sistema"
    },
    "attachments": [
      {
        "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
        "name": "string",
        "url": "string",
        "type": "string"
      }
    ],
    "sending_history": [
      {
        "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
        "recipients": [
          "string"
        ],
        "cc": [
          "string"
        ],
        "subject": "string",
        "status": "SENT",
        "sent_at": "2025-01-29T18:45:00Z",
        "external_message_id": "string",
        "error": "string"
      }
    ],
    "created_at": "2019-08-24T14:15:22Z",
    "updated_at": "2019-08-24T14:15:22Z",
    "deleted_at": "2019-08-24T14:15:22Z"
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}

{
  "success": false,
  "error": {
    "code": "INVALID_JSON_FORMAT",
    "message": "The field 'due_date' has an invalid date format: '2026-03-04fds'. Expected format: YYYY-MM-DD.",
    "details": {
      "field": "due_date",
      "invalid_value": "2026-03-04fds",
      "expected_format": "YYYY-MM-DD"
    }
  },
  "meta": {
    "timestamp": "2026-03-05T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}

{
  "success": false,
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Authentication required"
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "The provided data is not valid",
    "details": {
      "field": "specific error message"
    }
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  },
  "type": "https://docs.beel.es/errors/INVOICE_NO_LINES",
  "title": "INVOICE_NO_LINES",
  "detail": "La factura debe tener al menos una línea",
  "instance": "/v1/invoices/abc-123"
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "The provided data is not valid",
    "details": {
      "field": "specific error message"
    }
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  },
  "type": "https://docs.beel.es/errors/INVOICE_NO_LINES",
  "title": "INVOICE_NO_LINES",
  "detail": "La factura debe tener al menos una línea",
  "instance": "/v1/invoices/abc-123"
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Validation error",
    "details": {
      "field_name": "Field is required"
    }
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}

{
  "success": false,
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "Too many requests. Please try again in 60 seconds."
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}

{
  "success": false,
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error"
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}

Derive a draft invoice from an existing one

Authorization

Path Parameters

Header Parameters

Request Body

Response Body

201application/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