Audit & optimisation

Integration Review

Audit your live Stripe environment - reporting accuracy, fee structure, FX, security and conversion. Backed by a written report and a prioritised roadmap.

Reporting Accuracy/ Fee Structure/ FX Optimisation/ Webhook Reliability/ PCI Scope/ Connect Configuration/ Conversion & Checkout/ Reporting Accuracy/ Fee Structure/ FX Optimisation/ Webhook Reliability/ PCI Scope/ Connect Configuration/ Conversion & Checkout/

Audit & optimisation

Make sure your existing Stripe install is doing what you think it is.

Most production Stripe integrations work. The question we get asked is whether they're going to keep working at five times the volume, or under a new product line, or after the engineer who built it leaves. An Integration Review answers that question - with evidence, not opinion.

Each review is a fixed-scope engagement led by a Stripe-certified architect. We work through your codebase, dashboard configuration and operational runbooks against a structured checklist of common production issues, and deliver a written report your engineering and finance teams can act on independently.

Two engineers reviewing a Stripe integration

What we cover

Four lenses, one report

Reporting accuracy

Reconciliation against your finance system, metadata coverage, dispute and refund pathways - and the question of whether your Stripe data and your accounting agree at month-end.

Fee structure & FX

Effective rate vs what you should be paying, FX optimisations on multi-currency flows, and the savings that often pay for the engagement many times over.

Architecture & security

Webhook reliability, idempotency, PCI scope, Connect configuration, secret management, and the quiet failure modes that turn into incidents.

Conversion & checkout

Payment Element adoption, payment-method coverage by region, 3DS tuning, declined-card recovery - uplift available from changes that take an afternoon to deploy.

What you walk away with

A written report your team can act on independently.

Structured as a prioritised roadmap rather than a list of complaints. Each finding comes with severity, recommended action, estimated effort and the rationale behind the call - so engineering can pick it up without re-deciding what matters.

Most reviews uncover one or two architectural risks that would cost more to fix in production than the entire engagement, plus a steady stream of smaller wins that accumulate into meaningful operational improvement.

Sample finding

Webhook handler is not idempotent on customer.subscription.updated

Severity
High
Effort
~2 days
Risk
Double-write under retry
Status
Recommended

Recommendation: introduce an event-id idempotency key against your webhook log, drop duplicate deliveries before they reach the subscription state machine.

Typical outcomes

What an Integration Review tends to surface

1–2

Architectural risks per review

that would cost more to fix in production than the entire engagement.

5+

Operational improvements

small fixes that accumulate into meaningful reliability gains.

Days

Most fixes are deployable

in days, not sprints - once you know which ones matter.

Stripe Payments Specialised Partner Stripe Billing Specialised Partner

40+

Stripe Certifications

350+

Projects Completed

12+

Years of Experience

What Our Clients Are Saying

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Deep Expertise,
Backed by Credentials.

Square1 is the world's first verified Stripe Partner agency, with Specialised Partner status across Payments and Billing - and a team holding 12+ Stripe certifications across architecture, integration and reconciliation.

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