Ecommerce

Payment Gateway Integration

Integrate payment providers with clear handling of checkout, transaction status, refunds, and reconciliation. Build around provider capabilities and the responsibilities of your business.

Ecommerce / Specialist service

Make payment flows easier to trust and operate.

Integrate payment providers with clear handling of checkout, transaction status, refunds, and reconciliation. Build around provider capabilities and the responsibilities of your business.

Discuss your project

01 / Design the payment journey

Design the payment journey

Map payment methods, redirects or embedded flows, authentication, and the experience when a payment is declined or interrupted.

02 / Handle asynchronous events

Handle asynchronous events

Validate provider notifications, protect against duplicate processing, and keep order and payment states consistent.

03 / Support operational follow-through

Support operational follow-through

Connect refunds, reconciliation, and failure investigation to the teams responsible for payment operations.

04 / Your project

Talk through your use case

Discuss payment gateway integration in the context of your current systems, your team, and the outcome you need. Define a focused starting point before implementation.

Talk to DEQX

Clarity before commitment.

Shape the engagement around the work you need. Specific deliverables, access, responsibilities, and acceptance criteria are agreed during discovery.

What we start with

  • Catalog and commercial rules
  • Current platform and integrations
  • Order and fulfilment workflows

What the scope can cover

  • Design the payment journey
  • Handle asynchronous events
  • Support operational follow-through

What we agree together

  • A defined scope and prioritized delivery plan
  • Review points and acceptance criteria
  • Documentation and ongoing ownership

Plan the change. Prove the result.

A staged approach gives your team clear review points. Timing and responsibilities depend on the scope and the readiness of the systems involved.

  1. 01

    Understand the operation

    Map buying journeys, commercial rules, and the systems managing products, orders, payments, and fulfilment.

  2. 02

    Design the experience

    Agree architecture and customer journeys, including exception states and the teams responsible for them.

  3. 03

    Build and validate

    Implement the agreed scope and test realistic catalog, transaction, and integration scenarios.

  4. 04

    Prepare for trading

    Plan launch checks, reconciliation, monitoring, and support so the change can be managed during live operations.

Before we begin

Useful answers. Clear expectations.

A few questions to help frame your payment gateway integration project.

Do you store card information in the application?

The design should minimize direct handling of sensitive payment data and use provider-hosted or tokenized flows where appropriate. Exact responsibilities depend on the chosen provider and integration model.

How is the scope and delivery plan defined?

We begin with your current situation and the outcome you need. For this service, the discussion covers design the payment journey, handle asynchronous events, support operational follow-through. Deliverables, dependencies, review points, and commercial terms are agreed before implementation.

What happens after the initial delivery?

Handover, maintenance, and ongoing improvement are discussed as part of the engagement. The arrangement depends on your internal team, the systems involved, and the operating responsibilities you want DEQX to support.

Let’s talk about your project

Bring us the challenge. Let’s shape the next step.

Tell us what you want to improve, what you have today, and the constraints that matter. We’ll help define a practical starting point.

Start a conversation

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