Our solution with NETS Easy and “Subscriptions” works in six steps:

1. Embed Hosted Web-View: The customer saves a card in NETS’ secure web-view and completes any SCA challenge. NETS returns a card token tied to that customer.

2. Eliminate PCI Scope: Card data never touches your servers — all sensitive data is handled by NETS, letting you avoid higher-level PCI certification.

3. Multi-Card Support: Each customer can store multiple cards. You can fetch masked PAN, expiry date and card type via our API to display in your UI.

4. Token Verification: Before charging, call VerifyToken to ensure the card is active and not blocked, even if the expiry date has passed.

5. Token Updates: To rotate a card, simply reload the same token in the web-view — NETS refreshes it with the new card details.

6. Unscheduled Subscriptions: For variable amounts or irregular intervals, leverage our Unscheduled Subscriptions API: https://developer.nexigroup.com/nexi-checkout/en-EU/docs/manage-unscheduled-subscriptions/

• Card Payments (Visa, Mastercard, Amex) with enterprise-grade tokenization
• Mobile Wallets (MobilePay, Vipps) via in-app redirect or SDK
• E-Invoice & Direct Debit (EHF, konto-faktura) with automated follow-up
• Subscriptions & Recurring (fixed schedules or unscheduled)
• Fraud & 3D-Secure with dynamic challenge routing

Easily toggle methods on or off by country or customer segment.

3–5 weeks is typical:

1. Onboarding & Account Setup: we guide you through merchant registration and API credential provisioning.

2. Discovery & Design: workshop to define payment flows, error-handling, branding and reporting.

3. Development & Sandbox Testing: implement APIs, webhooks, SDKs and run end-to-end tests in sandbox.

4. UAT & QA: functional and performance testing, plus security review.

5. Go-Live & Support: switch to production, monitor initial traffic, and provide hypercare support.

• A NETS merchant account with your onboarding manager
• API credentials (client ID & secret)
• Brand assets (logo, color palette) for checkout styling
• Payment rules (surcharges, discounts, VAT handling)
• Subscription parameters (amounts, intervals, retry policy)

With these ready, we configure your sandbox in under 24 hours and begin coding.

1. CreateSession

```http

POST /payments/v1/sessions

{ amount, currency, orderId, allowedMethods }

→ { sessionToken, expiresAt }

```

2. Invoke SDK/Widget

Embed NETS’ JavaScript or native SDK with `sessionToken`. Customers pay on your page without redirect.

3. Handle Webhook

NETS sends `payment.success` or `payment.failure` to your webhook. Verify HMAC signature, then fulfill or retry.

• Capture: Settle authorized transactions via API.
• Refund: Issue full or partial refunds programmatically.
• Settlement Reports: Delivered daily as CSV/JSON via SFTP or API for easy ERP import.

NETS uses OAuth2 client-credentials. Exchange your client ID/secret for an access token, then include `Authorization: Bearer <token>` in each request. We’ll help implement secure token storage and refresh logic.

Yes—NETS provides dedicated sandbox and production API endpoints. You can develop and test all flows in sandbox without risk, then swap to production credentials and URLs when you’re ready to launch.

• Event Registration: Choose events like `payment.success`, `invoice.sent`, `subscription.renewed`.
• Secure Delivery: NETS POSTs HMAC-signed JSON to your callback URL.
• Replay & Idempotency: Each event carries an `eventId` so you can safely retry or ignore duplicates.

NETS’ REST API uses JSON for all requests and responses. Official SDKs in Node.js, .NET, PHP and Java handle serialization so you work with native objects.