Payment gateway integration for eCommerce growth

Development / Payments

Payment gateway integration that protects conversion
(and reduces failed payments)


A "working" payment gateway isn’t the same as a high-converting checkout. Payment issues show up as subtle drops in conversion rate, rising failed payments, broken tracking, and support tickets that eat your team alive.

We integrate and optimize payment gateways with a growth lens: faster checkout UX, resilient API/webhook handling, correct tax/shipping totals, and tracking-safe releases-so payments don’t become the bottleneck as you scale.

Back to the hub: Development. Related playbooks: eCommerce Integrations, API Development, eCommerce Development.

Adjacent services: Conversion Tracking, CRO, Monitoring & Incident Response, Case Studies.

What we deliver (payment integration done properly)


We build payment flows that are stable, compliant, and measurable-so checkout improvements translate into revenue, not surprises.

  • Fit for market

    Gateway selection + setup

    Stripe, PayPal, Adyen, Klarna, 2Checkout, local methods, wallets-aligned to region, AOV, risk, and your business model.

  • Conversion protection

    Checkout UX + validation

    Reduce friction: clearer error states, better form UX, correct totals, and edge-case handling (coupons, shipping, VAT, multi-currency).

  • Failure-safe

    SCA/3DS + webhook reliability

    Implement SCA/3DS correctly and build idempotent webhooks, retries, and reconciliation-so orders don’t get stuck and data stays consistent.

  • Trust the data

    Tracking-safe checkout events

    Ensure purchase events, revenue values, and attribution remain accurate across gateways-especially when checkout steps or redirects change.

WooCommerce, Shopify Custom Dev, Headless eCommerce, Laravel & APIs, Feature Sprints, ERP & PIM Sync

How we work

Validate requirements, ship safely, measure impact


Payment work is high-risk because it touches revenue, trust, and attribution. We align on requirements, implement with guardrails, QA across scenarios, then measure results so improvements compound.

Discovery & risk mapping

Map current payment flow, failure points, and reporting gaps-then define acceptance criteria for conversion and order integrity.

Implementation with guardrails

Contract-first integration patterns, secure auth, and robust webhook processing-so your store stays stable under real-world load.

QA across scenarios

QA for success/failure paths, 3DS/SCA, refunds, subscriptions (if relevant), and analytics events-so "edge cases" don’t become revenue leaks.

Measurement & ongoing ownership

Post-launch monitoring and iteration-so you can improve approval rates, reduce failed payments, and keep checkout reliable over time. (Pair with eCommerce Maintenance.)

Payment Integration - Packages

Start with clarity, then make payments a growth lever


Use an audit to identify checkout and payment constraints, then implement improvements safely in sprints.

What you get Audit + Plan Implementation Sprints
Best for Teams that need the right payment approach before changes Teams that want reliable delivery with QA and monitoring
Deliverables Risk list + recommended flow + tracking checks + phased roadmap Gateway integration, QA, tracking validation, and iteration
Guardrails Compliance considerations + failure-mode analysis Release governance to protect conversion and attribution
Primary next step Request audit Book a discovery call
Payment gateway integration CTA

Audit-first payment delivery

Want to know what’s hurting checkout conversion?


Proof

Case studies


Explore case studies

Explore services

Design & UX


Design & UX

Explore services

Speed Optimization


Speed Optimization
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