Subscribe to the employee seat add-on
Opt in to the per-employee billing add-on: create the dedicated monthly employee-seats subscription with quantity set to the number of active employees, charging the first period with the payment method on file. The charge is atomic — with no payment method it returns 402 employee_seat_payment_method_required (the envelope carries error.details.payment_setup_url), and a declined charge returns 402 employee_seat_charge_failed; in both cases nothing is subscribed. Returns the resulting billing status.
In: header
Header Parameters
Client-generated opaque key (up to 255 characters; UUID v7 recommended) that makes retries safe: the first response is cached and replayed for repeats without re-executing the mutation. Reusing a key with a different body returns 409 idempotency_key_reused. See the Idempotency guide.
1 <= length <= 255Pin 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.
dateOperate on behalf of a child company (gestoría master key): pass its public id (UUID v7) and the request runs against that child's data without changing the key's scope, tier or environment (omit to use the key's own company). Invalid UUID → 400 parameter_invalid_uuid; unknown or non-owned id → 404 profile_not_found. See the Acting on behalf guide.
uuidResponse Body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
import { Factuarea } from "@factuarea/sdk";const factuarea = new Factuarea({ apiKey: process.env.FACTUAREA_API_KEY! });const result = await factuarea.employeeSeats.subscribe();{
"data": {
"object": "employee_seat_billing_status",
"subscribed": true,
"quantity": 4,
"active_employees": 4,
"unit_amount": 150,
"tax_rate": 21,
"tax_amount": 32,
"total_per_seat": 182,
"recurring_total": 728,
"currency": "EUR",
"billing_interval": "month",
"next_invoice_at": "2026-08-01T09:12:00+00:00",
"requires_active_plan": false,
"seats_billable": true
}
}{
"error": {
"type": "authentication_error",
"code": "missing_api_key",
"message": "No se ha proporcionado una API key válida en el header Authorization.",
"param": null,
"doc_url": "https://docs.factuarea.com/guides/errors#missing_api_key",
"request_id": "req_01HKQS5N8VR7QXJ9K3T6BWPMZA"
}
}{
"error": {
"type": "payment_required_error",
"code": "payment_method_required",
"message": "La gestoría no tiene un método de pago configurado: configúralo para añadir la empresa.",
"param": null,
"details": {
"payment_setup_url": "https://billing.stripe.com/p/session/live_YWNjdF8xS2ZHM0RLb0h4RXBGV3lY"
},
"doc_url": "https://docs.factuarea.com/guides/errors#payment_method_required",
"request_id": "req_01HKQS5NPAYMENTMETHODREQ01"
}
}{
"error": {
"type": "authorization_error",
"code": "insufficient_scope",
"message": "Esta API key no tiene el scope requerido para esta operación.",
"param": null,
"doc_url": "https://docs.factuarea.com/guides/errors#insufficient_scope",
"request_id": "req_01HKQS5NBC3P8M1KX4V7SLNHQD"
}
}{
"error": {
"type": "idempotency_error",
"code": "idempotency_key_reused",
"message": "La cabecera `Idempotency-Key` ya se usó con un body distinto. Usa una clave nueva o reenvía exactamente el mismo body.",
"param": null,
"doc_url": "https://docs.factuarea.com/guides/errors#idempotency_key_reused",
"request_id": "req_01HKQS5NHT9A4U7R2E3F8GZWTJ"
}
}{
"error": {
"type": "rate_limit_error",
"code": "rate_limit_exceeded",
"message": "Has excedido el rate limit de 60 peticiones por minuto. Reintenta tras 30 segundos.",
"param": null,
"doc_url": "https://docs.factuarea.com/guides/errors#rate_limit_exceeded",
"request_id": "req_01HKQS5NKW1C6W9T4G5H0JBZVL"
}
}{
"error": {
"type": "api_error",
"code": "internal_error",
"message": "Ha ocurrido un error inesperado. Si persiste, contacta con soporte adjuntando el request_id.",
"param": null,
"doc_url": "https://docs.factuarea.com/guides/errors#internal_error",
"request_id": "req_01HKQS5NLX2D7X0U5H6J1KCAWM"
}
}