# Skip the next generation of a recurring invoice API Reference

Skips the next scheduled invoice generation and advances the generation date to the following period. Nothing is issued.

## POST /v1/companies/{company_id}/recurring-invoices/{recurring_invoice_id}/skip

**Skip the next generation of a recurring invoice**

Skips the next scheduled invoice generation and advances the generation date to the following period. Nothing is issued.

### Authentication

Accepts any of:

- `ApiKeyAuth` (HTTP bearer, token format `beel_sk_*`)

### Parameters

- **company_id** (required) in path `string`: Unique identifier (UUID) of the company the operation acts on — its identifier, not its NIF. 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 company you do not reach answers `403`, and so does a company that does not exist, so the existence of a company in another account is never disclosed.
- **recurring_invoice_id** (required) in path `string`: Unique identifier (UUID) of the recurring invoice template, as returned when it is created or listed. A template of another company answers `404` with `RECURRING_NOT_FOUND`, exactly like one that does not exist.
- **Idempotency-Key** (optional) in header `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) - Retrying with the same key replays the first response when it was a success (2xx) or a server error (5xx): same status and body, plus the header `Idempotency-Replay: true`. After a 5xx, check whether the operation took effect before retrying with a **new** key - A 4xx is not stored: the key is released, so the corrected request can reuse it - Stored responses 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 for the `Retry-After` seconds (2) and retry with the same key. | | `409` | `IDEMPOTENCY_KEY_MISMATCH` | The key was already used with a **different** body. Use a new key. |

### Responses

#### 200: Next generation skipped successfully

**Content `application/json`:**

- **success** (required) `boolean`: No description (example: true)
- **data** (required): The payload. An object for a single resource; an object holding the named collection (and its `pagination`) for a listing. Never a bare array at this level in v1.
- **meta** `ResponseMeta`
- **data** `RecurringInvoiceResponse`

#### 400: `VALIDATION_ERROR` — the body parses but a value is not acceptable. `details` is a flat map from
the offending property's name (in the contract's `snake_case`, nested paths joined with a dot,
e.g. `recipient.address.postal_code`) to a message describing what is wrong with it, one entry
per property. When the rejected value is one outside an enum's vocabulary, `details` instead
follows `FieldDeserializationError` (`field`, `invalid_value`, `allowed_values`).

Two more codes share this status for a value that passes the contract but does not fit
where it is stored: `VALUE_TOO_LONG` (a text longer than its column holds) and
`VALUE_OUT_OF_RANGE` (a number outside what its column holds). Nothing was written.

Other `error.code` values with this status:

- `RECURRING_NOT_ACTIVE` — the template is not `ACTIVE`, so it cannot generate, skip or preview. `error.details.current_status` says its state; resume it first if it is `PAUSED`.


**Content `application/json`:**

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

**Example:**

```json
{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "The provided data is not valid.",
    "details": {
      "legal_name": "The field 'legal_name' cannot be empty",
      "recipient.address.postal_code": "Contains invalid characters."
    }
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}
```

#### 401: Missing or invalid authentication. Like every other error, `message`/`detail` is
localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English when the
header is missing or asks for none of those.


**Content `application/json`:**

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

**Example:**

```json
{
  "success": false,
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Authentication is required to access this resource"
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}
```

#### 403: Your account does not own or manage this company, or does not hold the required
access over it. A NIF that does not exist answers the same way.
That case answers `error.code` `ACTIVE_COMPANY_NOT_ACCESSIBLE`.


**Content `application/json`:**

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

#### 404: The resource addressed by the path does not exist, or is not one this credential can see —
the two are answered identically, so existence is never disclosed. `error.code` names the
kind of resource that was missing, so a client can tell which of several ids in a path
failed to resolve:

- `INVOICE_NOT_FOUND` — the `{invoice_id}` (invoices, proformas and their sub-resources).
- `RECURRING_NOT_FOUND` — the `{recurring_invoice_id}`.
- `CLIENT_NOT_FOUND` — the `{customer_id}`.
- `INVOICE_CLIENT_NOT_FOUND` — the `customer_id` referenced by an invoice body does not
  resolve to a customer of the issuing company.
- `PRODUCT_NOT_FOUND` — the `{product_id}`.
- `SERIES_NOT_FOUND` — the `{series_id}`.
- `WEBHOOK_SUBSCRIPTION_NOT_FOUND`, `DELIVERY_LOG_NOT_FOUND` — the `{webhook_id}` and the
  `{delivery_id}`.
- `PROFILE_NOT_FOUND` — the credential's account has no company profile yet: its holder
  has not completed onboarding, so there is no issuer to act as.
- `NOT_FOUND` — the generic fallback, for the few resources that carry no code of their own.

Some resources declare a more specific `404` response of their own (`CONNECTION_NOT_FOUND`,
`MEMBER_NOT_FOUND`, `GRANT_NOT_FOUND`, `INVITATION_NOT_FOUND`, `REQUEST_LOG_NOT_FOUND`); it
is documented on the operation.

A `404` with `ENDPOINT_NOT_FOUND` is a different answer: the **path itself** does not exist
in this API (a typo in the route, or a resource that was never here). It says nothing about
any resource. When the path exists but not with that method, the answer is `405`, not `404`.


**Content `application/json`:**

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

**Example:**

```json
{
  "success": false,
  "error": {
    "code": "INVOICE_NOT_FOUND",
    "message": "Invoice not found"
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}
```

#### 429: Rate limit exceeded. `RATE_LIMIT_EXCEEDED` when the request rate of your credential is
over its limit; `TOO_MANY_REQUESTS` when an email the operation sends is held back because
too many went out to that recipient in a short time. Either way, retry after the
`Retry-After` seconds.

`QUOTA_EXCEEDED` is the other `429`: the operation would go over a quota of your plan
for the current period (issued invoices, for instance). Retrying does not help until the
quota resets or the plan changes. `error.details` carries `feature_code`,
`current_usage`, `quota_limit` and `reset_date`, and `RateLimit-Reset` the seconds until
the reset when it is known.


**Headers:**

- `Retry-After` `integer`: Seconds until the rate limit resets
- `RateLimit-Limit` `integer`: Maximum requests allowed in the window
- `RateLimit-Remaining` `integer`: Remaining requests in the current window
- `RateLimit-Reset` `integer`: Seconds until the current window resets

**Content `application/json`:**

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

**Example:**

```json
{
  "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"
  }
}
```

#### 500: Internal server error

**Content `application/json`:**

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

**Example:**

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

#### default: Any status code the operation does not list above. Every operation declares it, so a
generated client always has a branch to fall into and never loses the cause of a failure
it did not anticipate.

This is where the transport-level answers land — `405`, `406`, `415` and `429` — together
with any status a future version of the API starts returning. All of them carry the same
error envelope as the codes listed explicitly, so `error.code` is what tells them apart:
switching on the status code alone is not enough. See «Transport-level errors» in the
API description for when each one is produced.

A `402` carrying `SUBSCRIPTION_REQUIRED` lands here when the account has no active
subscription. `error.details` says why and what to do: `current_status` (absent if it
never had one), `required_permission` and `action`.

A `503` carrying `SERVICE_UNAVAILABLE` lands here too, with a `Retry-After` header: a
dependency of BeeL itself (the database, the email provider) was momentarily
unavailable and nothing was done. Retry after those seconds.

A `502` carrying `EXTERNAL_SERVICE_ERROR` also lands here: an outbound integration the
operation depends on failed or did not answer in time. It is a transient condition — retry
with the same `Idempotency-Key` where the operation accepts one.

One exception to the envelope: a failure of the network edge that never reaches the
application (`502`, `503`, `504`, `524`) is generated by Cloudflare and its body is not
BeeL's — it may not even be JSON. Treat those as "no answer", and retry.


**Content `application/json`:**

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

**Example:**

```json
{
  "success": false,
  "error": {
    "code": "UNSUPPORTED_MEDIA_TYPE",
    "message": "Unsupported media type: text/plain. Supported: application/json"
  },
  "meta": {
    "timestamp": "2025-01-15T10:30:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}
```

---

# Related Schema Definitions

## SuccessResponse

The envelope every successful JSON response of the BeeL. API is wrapped in. There are no
bare resources in v1 and none are planned: the payload always hangs off `data`.

- A **single resource** is an object in `data`.
- A **collection** hangs off a named key inside `data`, together with its `pagination`,
  also inside `data` — `data: {invoices: [...], pagination: {...}}`.
- A collection carries `pagination` unless its operation declares itself a **closed
  catalogue**: a fixed, bounded list with nothing to page through. The declaration is
  explicit in the operation; a missing `pagination` is never something to infer.
- `GET /v1/accounts` pages by cursor (`data: {accounts: [...], next_cursor}`). It is a
  documented variant of pagination, not another envelope.

Putting the array straight into `data` with `pagination` as its sibling is the shape a v2
would adopt; v1 is not being flipped to it.

- **success** (required) `boolean`: No description (example: true)
- **data** (required): The payload. An object for a single resource; an object holding the named collection (and its `pagination`) for a listing. Never a bare array at this level in v1.
- **meta** `ResponseMeta`

## ResponseMeta

- **timestamp** `string` (date-time): No description (example: "2025-01-15T10:30:00Z")
- **request_id** `string`: No description (example: "4bf92f3577b34da6a3ce929d0e0e4736")

## RecurringInvoiceResponse

- **id** `string` (uuid): No description
- **name** `string`: No description
- **frequency** `string`: Billing cadence of the template: `MONTHLY` every month, `QUARTERLY` every 3 months, `YEARLY` every 12 months. The day it falls on is `day_of_month`, the same anchor for all three. Set it when you create the template; a template created without it is `MONTHLY`. The cadence governs the step from the first invoice onwards, not where that first one lands: the first occurrence is the first `day_of_month` on or after `start_date`, found one month at a time. A yearly template starting 15 February with `day_of_month` 10 first invoices on 10 March, then every 10 March after that. — one of: MONTHLY, QUARTERLY, YEARLY
- **day_of_month** `integer`: Day of the month the invoices are issued, as it was requested: this is the anchor of the schedule, not the day the last invoice happened to land on. A month that does not have that day falls back to its last day, so `next_generation` can show a different day than this one — a template on `31` generates on 28 February (29 in a leap year) and on 30 April. The adjustment never sticks and the schedule does not drift: every generation is recalculated from this value, never from the date it was adjusted to (31 Jan → 28 Feb → 31 Mar).
- **start_date** `string` (date): No description
- **end_date** `string` (date): No description
- **next_generation** `string` (date): Date the next invoice is generated — the one this template is actually going to honour. `null`, always present and never omitted, when there is none. There is none in two cases, and only in those two: - the template is `COMPLETED`: the date left on it is the one that ran past its end and triggered the closure, not a generation still to come; - the template is `PAUSED` and its date is strictly in the past: resuming does not go back to it — it reschedules from today onwards, so that date will never be invoiced. An `ACTIVE` template always carries its date, **including a date already in the past**: that is the occurrence about to be generated, and it is your only notice that an invoice is on its way. A `PAUSED` template whose date is still ahead — today counts as ahead — carries it too: it is exactly the date resuming would keep. The stored schedule is never rewritten by any of this. `next_generation` is what gets published, not what gets kept: resuming a long-paused template still reschedules from its own anchor, as it always did.
- **draft_in_advance** `boolean`: Whether this template prepares a draft for review before emitting. The review window is fixed at 5 days: `true` creates the draft 5 days ahead, `false` goes straight to the emission. Either way the invoice is emitted on the scheduled `day_of_month` — what changes is only whether there is a draft to look at first. Generating manually (`POST .../generate`) a period whose scheduled date is today or earlier emits the invoice on the spot: its review window has already passed. (example: true)
- **status**: No description
- **is_failing** `boolean`: Whether this template is failing right now — from the FIRST failed unattended run, not the third. The warning email only goes out on every 3rd consecutive retryable failure, so `next_generation` not moving used to be the only clue before that; this field surfaces the same signal from the very first one. `true` when either an unattended run has failed at least once and the retry streak has not been cleared by a successful generation yet (even while `status` is still `ACTIVE`, before any email fires), or `status` is `PAUSED` with `pause.reason = GENERATION_FAILURE`. Derived on every read from data already stored — it is not a new column and nothing else changes because of it. (example: false)
- **pause** `RecurringInvoicePause`: Why this schedule is paused. Present while `status` is `PAUSED`; absent otherwise, and also absent for schedules paused before this was recorded. `PAUSED` covers three facts that are not interchangeable: someone paused it, a plan downgrade paused it, or an unattended generation failed with something waiting will not fix. A transient failure (network, timeout, tax authority downtime) does NOT pause the schedule — the next run retries it.
- **completion** `RecurringInvoiceCompletion`: Why this schedule ended. Present while `status` is `COMPLETED`; absent otherwise, and also absent for schedules completed before this was recorded — that cause is not known and is not invented. `COMPLETED` covers facts that are not interchangeable: the owner ended it, the calendar ran out, or the agreed number of invoices did. It stays a **single** terminal status and `status` keeps its three values: no business rule branches on the cause, and a new status value would break every exhaustive `switch`. New causes land in `reason`, so treat it as an open set.
- **series_id** `string` (uuid): No description
- **series_code** `string`: No description
- **invoice_type** `RecurringInvoiceType`: Type of the invoices a recurring template generates: `STANDARD` for an identified recipient, `SIMPLIFIED` for a recipient that is not identified.
- **customer_id** `string` (uuid): No description
- **recipient_fiscal_name** `string`: No description
- **recipient_nif** `string`: Spanish Tax ID of the recipient. Mutually exclusive with `recipient_alternative_id`: a recipient is identified by exactly one of the two, never both, and `null` when the other one carries the identifier (or when there is no recipient identified at all).
- **recipient_alternative_id**: No description
- **lines** `array[InvoiceLineTemplateResponse]`: No description
- **amount** `number`: What the customer will be asked to transfer on the next invoice this template generates: taxable base + VAT + equivalence surcharge − IRPF withholding + disbursements (`suplidos`). It is NOT the taxable base and NOT the total with VAT: the withholding is already subtracted. The same number the next occurrence publishes as `total_to_pay`, to the cent: both come from the template's own lines through the same line pipeline the real generation uses. It is computed on the fly and stored nowhere, so it always reflects the lines the template carries right now — and it is not sortable or filterable for that reason. `null` when the template's lines cannot be priced (no lines, or lines the engine rejects). The rest of the template is still returned. (example: 106)
- **payment_method** `string`: No description
- **payment_iban** `string`: Full IBAN of the template's own payment method, mirrored from what was sent when it was set. `null` when the template has no payment method.
- **payment_swift** `string`: SWIFT/BIC code of the template's own payment method. `null` when the template has no payment method, or when it has one without a SWIFT code.
- **payment_term_days** `integer`: Payment term, in days, of the template's own payment method. `null` when the template has no payment method, or when it has one without a declared term. Each generated invoice is due on its issue date plus this term. When it is `null`, the company's default `payment_term_days` (tax configuration) applies, or 30 days if the company has none.
- **notes** `string`: No description
- **send_automatically** `boolean`: No description
- **email_configuration** `RecurringEmailConfigResponse`
- **generated_invoices** `integer`: No description
- **max_invoices** `integer`: Total number of invoices agreed for this template, or absent when the recurrence is not capped by number. It is the TOTAL agreed, not what is left: "remaining" is `max_invoices - generated_invoices`, a derived reading with no field of its own — two counters of the same fact drift, and the day they do nobody knows which one is true. What counts against it are invoices GENERATED, not calendar turns: a skip does not spend cap because it produces no invoice, and a `generate now` does because it produces a real fiscal invoice. When the last one is generated the template is closed in the act, with `completion.reason = MAX_INVOICES_REACHED`. (example: 6)
- **last_generated_at** `string` (date-time): No description
- **last_generated_scheduled_date** `string` (date): Calendar date of the latest period this template has already invoiced: the highest `scheduled_date` in its generation history. `null` when it has never generated an invoice. It is NOT the date of `last_generated_at`. That field is the instant the most recent invoice was created; this one is the calendar slot that invoice (or an earlier one) was issued for. They diverge on purpose: a `generate now` creates today an invoice for a future slot, and a re-anchored schedule can generate a slot out of order, so the latest invoice created is not necessarily the one with the latest slot. Skipping a period does not move it: a skip produces no invoice, so it consumes no slot. Deleting a generated invoice does not move it either, with one exception: deleting the draft of the latest generation releases that slot (the period becomes available to generate again, and `generated_invoices` goes down by one), so this date moves back to the previous generated slot, or to `null` if there is none. (example: "2026-05-01")
- **source_invoice_id** `string` (uuid): No description
- **created_at** `string` (date-time): No description
- **updated_at** `string` (date-time): No description

## ErrorResponse

Error response shared by all BeeL. APIs.

The payload carries **two contracts at once** (additive, non-breaking):

- **Legacy** (`success`, `error.{code,message,details}`, `meta`) — kept
  intact for existing consumers.
- **RFC 9457** (`type`, `title`, `detail`, `instance`) — new fields
  for integrators following Problem Details for HTTP APIs. The
  `type` URI is the stable, shareable link to the error's
  documentation page (e.g. `https://docs.beel.es/errors/{code}`).

Future migration: the legacy fields will be deprecated via
`Deprecation`/`Sunset` headers after a sufficient adoption window,
and the response Content-Type will move to
`application/problem+json`.

- **success** (required) `boolean`: No description (example: false)
- **error** (required) `ErrorDetail`
- **meta** `ResponseMeta`
- **type** `string` (uri): Stable URI that identifies the problem type and where the integrator will find its documentation. (example: "https://docs.beel.es/errors/INVOICE_NO_LINES")
- **title** `string`: Short summary of the problem type. Stable between occurrences of the same `type`. (example: "INVOICE_NO_LINES")
- **detail** `string`: Specific message for this occurrence, localized according to `Accept-Language` (`es`, `en`, `ca`); defaults to English. Matches the legacy `error.message`. (example: "The invoice must have at least one line")
- **instance** `string` (uri-reference): URI that identifies the specific occurrence of the problem — typically the path of the affected resource. (example: "/v1/invoices/abc-123")

## ErrorDetail

- **code** (required) `string`: No description (example: "VALIDATION_ERROR")
- **message** (required) `string`: No description (example: "The provided data is not valid")
- **details** `object`: No description (example: {"field":"specific error message"})

## RecurringInvoicePause

Why this schedule is paused. Present while `status` is `PAUSED`; absent otherwise, and also
absent for schedules paused before this was recorded.

`PAUSED` covers three facts that are not interchangeable: someone paused it, a plan downgrade
paused it, or an unattended generation failed with something waiting will not fix. A transient
failure (network, timeout, tax authority downtime) does NOT pause the schedule — the next run
retries it.

- **reason** `RecurringInvoicePauseReason`: Who stopped the schedule. `USER` a person did, from the API or the dashboard; `DOWNGRADE` the account lost the recurring-invoices feature; `GENERATION_FAILURE` an unattended run failed with something waiting will not fix — that one carries a `blocker`.
- **since** `string` (date-time): No description
- **blocker** `string`: What blocked the emission, using the same codes the emission error returns (the `blockers[]` of a 422 `EMISSION_NOT_READY`). Only for `GENERATION_FAILURE`, and it may be absent when the permanent failure was not a readiness one. Resuming is rejected while this blocker is still in effect. (example: "NIF_NOT_REGISTERED")

## RecurringInvoiceCompletion

Why this schedule ended. Present while `status` is `COMPLETED`; absent otherwise, and also
absent for schedules completed before this was recorded — that cause is not known and is not
invented.

`COMPLETED` covers facts that are not interchangeable: the owner ended it, the calendar ran
out, or the agreed number of invoices did. It stays a **single** terminal status and `status` keeps its three values: no business rule
branches on the cause, and a new status value would break every exhaustive `switch`. New causes
land in `reason`, so treat it as an open set.

- **reason** `string`: `USER` — someone completed it (`PUT .../status` to `COMPLETED`). `END_DATE_REACHED` — the next occurrence landed past `end_date`, so there was nothing left to generate. This includes automatic generation and the common close of generating, skipping and resuming. `MAX_INVOICES_REACHED` — the `max_invoices` cap ran out: the last agreed invoice was generated (or the cap was moved down to the number already generated). When a template exhausts its cap and its `end_date` on the very same turn this is the cause reported: the cap is the fact that just happened, the date is the calendar consequence that follows. — one of: USER, END_DATE_REACHED, MAX_INVOICES_REACHED
- **at** `string` (date-time): Instant the schedule was closed.

## RecurringInvoiceType

Type of the invoices a recurring template generates: `STANDARD` for an identified recipient,
`SIMPLIFIED` for a recipient that is not identified.

Type: `string` — one of: STANDARD, SIMPLIFIED

## InvoiceLineTemplateResponse

- **id** `string` (uuid): No description
- **order** `integer`: No description
- **description** `string`: No description
- **quantity** `number`: No description
- **unit** `string`: No description
- **unit_price** `number`: Unit price of the template line. In both total-declared modes (`pricing_mode` other than `UNIT_PRICE`) this value is **derived and informational** (`total / quantity`, 4 decimals): re-multiplying it does not reproduce the declared total on large quantities.
- **pricing_mode** `PricingMode`: How the line amount was entered. - `UNIT_PRICE`: classic mode — the amount is derived from `unit_price` (`quantity × unit_price × (1 − discount / 100)`). - `TOTAL_EXCLUDING_TAX`: total-declared mode — `total_excluding_tax` is the exact taxable base and `unit_price` is derived and informational (`total / quantity`, 4 decimals). - `TOTAL_INCLUDING_TAX`: tax-inclusive total-declared mode — `total_including_tax` is what the customer paid (taxable base + VAT + equivalence surcharge) and the engine works the breakdown backwards so the rounded amounts add up to the declared total exactly. In both total-declared modes re-multiplying the derived `unit_price` does NOT reproduce the declared total on large quantities (1.00 € ÷ 300 units → 0.0033 × 300 = 0.99), which is precisely why the declared total is the source of truth.
- **total_excluding_tax** `number`: Declared line total excluding taxes. Only present on lines with `pricing_mode = TOTAL_EXCLUDING_TAX`. It never includes taxes nor subtracts IRPF withholding. (example: 1)
- **total_including_tax** `number`: Declared line total including taxes (taxable base + VAT + equivalence surcharge; IRPF withholding is never subtracted). Only present on lines with `pricing_mode = TOTAL_INCLUDING_TAX`. Every invoice this template generates reproduces it exactly. (example: 100)
- **discount_percentage** `number`: No description
- **tax_type** `string`: No description
- **vat_rate** `number`: No description
- **regime_key** `string`: No description
- **equivalence_surcharge_rate** `number`: No description
- **irpf_rate** `number`: No description
- **exemption_reason** `ExemptionReason`: Tax exemption reason code per the Spanish VAT Law (Ley 37/1992, LIVA), with the VeriFactu code each one is reported as. - `EXENTA_ART_20`: exempt, art. 20 (domestic operations such as medical, educational, cultural and financial services, or housing rentals). E1. - `EXENTA_ART_21`: exempt, art. 21 (exports of goods). E2. - `EXENTA_ART_22`: exempt, art. 22 (operations treated as exports). E3. - `EXENTA_ART_24`: exempt, art. 24 (free zones, warehouses and customs regimes). E4. - `EXENTA_ART_25`: exempt, art. 25 (intra-community supplies of goods). E5. - `EXENTA_ART_26`: exempt, art. 26 (intra-community acquisitions of goods). It exempts the buyer's acquisition, not a supply the seller invoices, so an invoice line that carries it is rejected with `EXEMPTION_NOT_FOR_ISSUED_INVOICE`; a supply to another Member State is `EXENTA_ART_25`. - `NO_SUJETA_ART_7_9`: not subject under art. 7 (such as the transfer of a business as a going concern, art. 7.1º). N1. - `NO_SUJETA_LOCALIZACION`: not subject by the place-of-supply rules (intra-community or non-EU services, arts. 69 and 70). N2. - `ISP_ART_84_2_A` … `ISP_ART_84_2_F`: reverse charge (the invoice states «inversión del sujeto pasivo»), art. 84.Uno.2.º letters a) (supplier not established in Spain), b) (unwrought or semi-finished gold), c) (scrap, waste and recovery materials, plastic, paper, cardboard, glass and textile waste, and semi-finished non-ferrous metal products), d) (greenhouse gas emission allowances), e) (certain real estate supplies: in insolvency proceedings, with the exemption waived, or enforcing a security) and f) (construction or renovation works). S2. - `ISP_ART_84_2_G`: reverse charge of letter g) (silver, platinum, palladium, mobile phones, consoles, laptops and tablets). The law requires these supplies to be invoiced in a special series, so an invoice line that carries it is rejected with `REVERSE_CHARGE_CASE_NOT_SUPPORTED`. - `EXENTA_ART_140`: investment gold exemption, art. 140 bis (usually with `regime_key` `04`). E6. - `REGIMEN_ART_129` (agriculture, livestock and fishing, arts. 124 to 134 bis), `REGIMEN_ART_135` (second-hand goods, art and antiques), `REGIMEN_ART_141` (travel agencies), `REGIMEN_ART_154` (equivalence surcharge) and `REGIMEN_ART_163_DECIES` (cash basis, arts. 163 decies to 163 sexiesdecies): operations of special regimes, which VeriFactu identifies by the regime key rather than by an exemption code. An invoice line that carries one is rejected with `EXEMPTION_REGIME_NOT_SUPPORTED_IN_VERIFACTU`; declare the regime with `regime_key` instead. - `OTRO`: any other provision. Requires the text in `exemption_reason_text`. E6.
- **exemption_reason_text** `string`: Custom exemption text. Only used when exemption_reason is OTRO.

## RecurringEmailConfigResponse

- **recipients** `array[string]`: No description
- **cc** `array[string]`: No description
- **subject** `string`: No description
- **message** `string`: No description

## RecurringInvoicePauseReason

Who stopped the schedule. `USER` a person did, from the API or the dashboard; `DOWNGRADE` the
account lost the recurring-invoices feature; `GENERATION_FAILURE` an unattended run failed with
something waiting will not fix — that one carries a `blocker`.

Type: `string` — one of: USER, DOWNGRADE, GENERATION_FAILURE

## PricingMode

How the line amount was entered.

- `UNIT_PRICE`: classic mode — the amount is derived from `unit_price`
  (`quantity × unit_price × (1 − discount / 100)`).
- `TOTAL_EXCLUDING_TAX`: total-declared mode — `total_excluding_tax` is the exact
  taxable base and `unit_price` is derived and informational
  (`total / quantity`, 4 decimals).
- `TOTAL_INCLUDING_TAX`: tax-inclusive total-declared mode —
  `total_including_tax` is what the customer paid (taxable base + VAT +
  equivalence surcharge) and the engine works the breakdown backwards so the
  rounded amounts add up to the declared total exactly.

In both total-declared modes re-multiplying the derived `unit_price` does NOT
reproduce the declared total on large quantities (1.00 € ÷ 300 units → 0.0033 ×
300 = 0.99), which is precisely why the declared total is the source of truth.

Type: `string` — one of: UNIT_PRICE, TOTAL_EXCLUDING_TAX, TOTAL_INCLUDING_TAX

## ExemptionReason

Tax exemption reason code per the Spanish VAT Law (Ley 37/1992, LIVA), with the
VeriFactu code each one is reported as.

- `EXENTA_ART_20`: exempt, art. 20 (domestic operations such as medical, educational,
  cultural and financial services, or housing rentals). E1.
- `EXENTA_ART_21`: exempt, art. 21 (exports of goods). E2.
- `EXENTA_ART_22`: exempt, art. 22 (operations treated as exports). E3.
- `EXENTA_ART_24`: exempt, art. 24 (free zones, warehouses and customs regimes). E4.
- `EXENTA_ART_25`: exempt, art. 25 (intra-community supplies of goods). E5.
- `EXENTA_ART_26`: exempt, art. 26 (intra-community acquisitions of goods). It exempts the
  buyer's acquisition, not a supply the seller invoices, so an invoice line that carries it
  is rejected with `EXEMPTION_NOT_FOR_ISSUED_INVOICE`; a supply to another Member State is
  `EXENTA_ART_25`.
- `NO_SUJETA_ART_7_9`: not subject under art. 7 (such as the transfer of a business as
  a going concern, art. 7.1º). N1.
- `NO_SUJETA_LOCALIZACION`: not subject by the place-of-supply rules (intra-community
  or non-EU services, arts. 69 and 70). N2.
- `ISP_ART_84_2_A` … `ISP_ART_84_2_F`: reverse charge (the invoice states «inversión del
  sujeto pasivo»), art. 84.Uno.2.º letters a) (supplier not established in Spain), b) (unwrought
  or semi-finished gold), c) (scrap, waste and recovery materials, plastic, paper, cardboard, glass and textile waste, and semi-finished non-ferrous metal products), d) (greenhouse gas emission
  allowances), e) (certain real estate supplies: in insolvency proceedings, with the exemption
  waived, or enforcing a security) and f) (construction or renovation works). S2.
- `ISP_ART_84_2_G`: reverse charge of letter g) (silver, platinum, palladium, mobile phones,
  consoles, laptops and tablets). The law requires these supplies to be invoiced in a special
  series, so an invoice line that carries it is rejected with
  `REVERSE_CHARGE_CASE_NOT_SUPPORTED`.
- `EXENTA_ART_140`: investment gold exemption, art. 140 bis (usually with `regime_key`
  `04`). E6.
- `REGIMEN_ART_129` (agriculture,
  livestock and fishing, arts. 124 to 134 bis), `REGIMEN_ART_135` (second-hand goods,
  art and antiques), `REGIMEN_ART_141` (travel agencies), `REGIMEN_ART_154` (equivalence
  surcharge) and `REGIMEN_ART_163_DECIES` (cash basis, arts. 163 decies to 163
  sexiesdecies): operations of special regimes, which VeriFactu identifies by the regime
  key rather than by an exemption code. An
  invoice line that carries one is rejected with `EXEMPTION_REGIME_NOT_SUPPORTED_IN_VERIFACTU`;
  declare the regime with `regime_key` instead.
- `OTRO`: any other provision. Requires the text in `exemption_reason_text`. E6.

Type: `string` — one of: EXENTA_ART_20, EXENTA_ART_21, EXENTA_ART_22, EXENTA_ART_24, EXENTA_ART_25, EXENTA_ART_26, EXENTA_ART_140, NO_SUJETA_ART_7_9, NO_SUJETA_LOCALIZACION, ISP_ART_84_2_A, ISP_ART_84_2_B, ISP_ART_84_2_C, ISP_ART_84_2_D, ISP_ART_84_2_E, ISP_ART_84_2_F, ISP_ART_84_2_G, REGIMEN_ART_129, REGIMEN_ART_135, REGIMEN_ART_141, REGIMEN_ART_154, REGIMEN_ART_163_DECIES, OTRO


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Full OpenAPI spec: https://docs.beel.es/api/openapi