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Terms of Service

Last updated: September 10, 2026

1. Acceptance and scope

By registering or using Rioko, you accept these terms. If you do not agree, do not use the service.

Rioko is a service operated by Kapta, a brand of ABSOLUTEPIXEL UNIPESSOAL, LDA, tax number (NIPC) 516277421, registered at Urbanização O Monte Lt1, Loja 11, 8200-428 Galé, Albufeira, Portugal.

Where a contract, proposal or specific conditions have been agreed in writing for your account, that document prevails over these terms to the extent of any conflict.

2. The service

Rioko is an automatic bridge between your sales platforms and your invoicing software. On receiving paid sale and refund events from the source platforms (Shopify, Stripe, Stripe Connect, Lodgify and EuPago), Rioko issues on your behalf, in your invoicing account (InvoiceXpress, Moloni or Vendus), Invoices, Invoice-Receipts and Credit Notes, with tax number, VAT rates, exemption codes and tax identification according to the configuration you set.

Supported platforms and available features may change over time. Your specific connection, its status and its settings are visible in the dashboard.

3. Account, credentials and access

  • You warrant that your registration data is truthful and up to date.
  • You are responsible for keeping the credentials of the connected platforms and of Rioko itself secure.
  • You are responsible for all activity in your account.

Do not send passwords, API keys, tokens or other secrets through public forms, social media or unsolicited email. Access is authorised through the dashboard's own flows or through a secure channel we will indicate.

Access granted to Rioko must follow the principle of least privilege and be limited to what is necessary for the agreed purpose. Inform us without delay of suspected unauthorised access, revoked permissions, account changes or relevant security incidents.

4. Tax responsibility

Rioko is a technical tool. Final responsibility for compliance with tax obligations (correct issuance, AT, VAT, document series, filings) is yours.

You define and validate the rules applied: document series, document type, VAT rates, exemption codes, product mappings and which data is synchronised. Rioko applies the configuration you give it.

We recommend consulting your accountant whenever you have doubts about the tax treatment of a transaction.

5. Monitoring and validation

Rioko sends automatic alerts when it detects issuance failures and runs a periodic reconciliation of uninvoiced sales. These alerts are a best-effort aid, not a guarantee: they may fail, be delayed, not cover every case, or fail to detect situations originating in the external platform, in credentials or in configuration.

Regardless of the alerts, it is your responsibility, on a regular basis, to:

  • Monitor the connection, the data received, the documents issued and the synchronised statuses.
  • Validate results before activating in production and after any configuration change.
  • Maintain your own control and reconciliation procedures, including periodic checks in your invoicing software.
  • Report any abnormal situation to us without delay, for review and resolution within the scope of the applicable support.

Rioko does not assume an obligation to independently detect every failure nor to guarantee uninterrupted operation, and is not liable for losses arising from failures the alerts did not detect or that were not reported to us in good time. The integration does not replace your operational, accounting and invoicing controls.

6. Acceptable use

You may not:
  • Use Rioko to issue fraudulent documents or documents for third parties without authorisation.
  • Attempt to circumvent technical or security limits of the service.
  • Reverse engineer, copy or resell the service.
  • Use Rioko in a way that harms the operation of the connected platforms.

7. Price and payment

If your subscription is paid, the pricing, billing cycle and cancellation terms are set out on the plans page, in the billing dashboard or in the agreed contract. Payments are non-refundable unless otherwise required by law.

8. Availability and external systems

We strive to keep the service available 24/7, but we do not guarantee absolute uptime. Maintenance windows may occur.

Rioko depends on the availability, documentation, technical limits, policies and APIs of platforms we do not control. Changes to those platforms' APIs, versions, permissions, pricing, usage limits, webhooks or policies may require review and changes on our side and may temporarily affect the service. Where possible, we communicate the identified impact and the proposed course of action.

Delays, synchronisation failures, duplicate documents, outages or behaviour dependent on external systems may occur.

9. Limitation of liability

To the maximum extent permitted by applicable law, Rioko is not liable for failures, interruptions, delays or data loss not directly attributable to it, including:
  • Indirect losses, lost profits or consequential damages.
  • Tax errors resulting from incorrect configuration on your part (tax number, VAT, exemptions, document series, mappings).
  • Unavailability, changes, decisions, acts or omissions of external platforms.
  • Incorrect data, insufficient permissions, revoked credentials or unvalidated configurations.
  • Failures the alerts did not detect or that were not reported to us in good time, under clause 5.

Rioko's aggregate liability is in any case limited to the amount paid by the client in the 3 months preceding the event.

Nothing in these terms excludes or limits liability that cannot be excluded or limited under applicable law.

10. Intellectual property

Rioko's software, middleware, documentation, methodologies and materials remain protected by intellectual property rights and are owned by ABSOLUTEPIXEL UNIPESSOAL, LDA. Your use is limited to what is set out in the subscribed plan or applicable contract.

You retain ownership of, or rights to, your data, brands, content and systems, and warrant that Rioko may use them to the extent necessary to provide the service.

11. Suspension and cancellation

We may suspend access or cancel accounts that breach these terms, or where necessary for security, maintenance, legal compliance, prevention of misuse or protection of the systems involved.

You may cancel your account at any time by deleting it through the dashboard or by emailing [email protected]. Documents already issued remain in your invoicing account and under your custody.

12. Changes to these terms

We may update these terms to reflect legal, technical or operational changes. Material changes are communicated by email 14 days in advance. Continued use after they take effect implies acceptance.

13. Governing law and dispute resolution

These terms are governed by Portuguese law, without prejudice to mandatory rules that may apply. Any dispute is subject to the jurisdiction of the Judicial Court of the District of Lisbon, with express waiver of any other.

Where the user is a consumer, they may refer the matter to an Alternative Consumer Dispute Resolution body under article 18 of Law no. 144/2015. Details of the competent body are in the Consumer information section of the Privacy Policy. The electronic Complaints Book is also available at www.livroreclamacoes.pt/inicio.

14. Contact

Rioko, a service by Kapta (ABSOLUTEPIXEL UNIPESSOAL, LDA)
NIPC 516277421
Urbanização O Monte Lt1, Loja 11, 8200-428 Galé, Albufeira, Portugal
Email: [email protected]
Site: kapta.pt

Annex A. Partner accounts

A partner is a company that works with Rioko and brings it clients. An account is linked to a partner when you sign up through that partner's page, when you accept its invitation, or when the partner creates and manages the account for you.

A link is not access. The link gives you the partner price and identifies your account in the partner's portal. The partner only enters your account if you expressly allow it, and you can withdraw that permission at any time in My account, with immediate effect.

With permission, the partner may configure your integrations and view documents, logs and reconciliation. It may not delete the account, manage your users or your Rioko subscription, issue invoices by hand, re-issue documents or issue credit notes by hand. On an account it does not manage, it also may not turn on automatic finalisation of documents or sending them to your customers. The partner's actions in your account are recorded and you can see them in My account.

Partner price. By signing up through a partner's page, you agree that the partner receives your account's company name, VAT number and email to confirm you are its client. The partner price applies while the link is active. If the partner does not confirm the link, or if you leave the partner, the partner price stops applying from the next renewal, without changing the period already paid.

Managed accounts. When a partner creates an account on behalf of a client, it declares it holds that client's written authorisation. The client may take over the account and withdraw the partner's access at any time.

Annex B. Partner Terms

These terms apply to companies acting as Rioko partners, in addition to the partner agreement signed with Kapta, which prevails in case of conflict.
  • The partner only accesses the accounts of clients who allowed it, and only to configure and follow those clients' integrations.
  • The partner handles the data it accesses on the client's behalf and instructions, in confidence, and does not copy, export or use it for other purposes.
  • The partner ensures that the people on its team with portal access know and follow these terms, and removes access from anyone who stops working with it.
  • On the accounts it creates and manages, the partner declares it holds the client's written authorisation and answers for paying the subscriptions it takes on.
  • The partner's page and invitations may only be sent to people with a legitimate interest in receiving them.
  • Kapta may suspend a partner's access in case of breach or misuse, and each client may withdraw the partner's access at any time.