Terms of Service
Last updated: May 18, 2026
1. Acceptance
By registering or using Rioko, you accept these terms. If you do not agree, do not use the service.
2. The service
Rioko is an automatic bridge between Shopify and InvoiceXpress. Upon receiving webhooks for paid orders or refunds from your Shopify store, Rioko issues, on your behalf, Invoice-Receipts, Invoices and Credit Notes in your InvoiceXpress account, with correct VAT ID, VAT exemptions and tax identification.
3. Account and credentials
- You guarantee that registration data is truthful and up to date.
- You are responsible for keeping Shopify, InvoiceXpress and Rioko credentials secure.
- You are responsible for all activity in your account.
4. Tax responsibility
Rioko is a technical tool. Final responsibility for compliance with Portuguese tax obligations (correct issuance, AT, VAT, declarations) is yours. We recommend that you periodically validate the documents issued in InvoiceXpress and consult your accountant.
5. Acceptable use
You may not:
- Use Rioko to issue fraudulent documents or on behalf of third parties without authorization.
- 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 external services (Shopify, InvoiceXpress).
6. Pricing and payment
If your subscription is paid, pricing, billing cycle and cancellation terms are stated on the plans page or signed contract. Payments are non-refundable unless legally required otherwise.
7. Availability
We strive to keep the service available 24/7, but absolute uptime is not guaranteed. Small maintenance windows may occur. Outages in external systems (Shopify, InvoiceXpress, Cloudflare, Clerk) may temporarily affect Rioko.
8. Limitation of liability
To the maximum extent permitted by law, Rioko (Kapta) is not liable for:
- Indirect losses, lost profits or consequential damages.
- Tax errors resulting from incorrect configuration on your part (VAT ID, VAT, exemptions, series).
- Unavailability or errors in third-party services (Shopify, InvoiceXpress, etc.).
Rioko's aggregate liability, in any case, is limited to the amount paid by the customer in the 3 months prior to the event.
9. Suspension and cancellation
We may suspend or cancel accounts that violate these terms. You may cancel your account at any time by deleting it via the dashboard or by emailing [email protected].
10. Changes to terms
We may update these terms. Material changes are communicated by email with 14 days' notice. Continued use after the effective date implies acceptance.
11. Governing law and jurisdiction
These terms are governed by Portuguese law. Any dispute is subject to the jurisdiction of the Lisbon District Court, expressly waiving any other.