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H from $3,500 · fixed SLA · 14–35 days (scope-dependent)

Named fixed-price e-commerce integration — built in three streams so you see what you're paying for.

Automations built to last.

Most freelancers compress a Shopify-to-Printful or Stripe-to-QuickBooks integration into one line item and quietly skip the reliability layer. The bridge works on the demo. Then a webhook gets retried at 2 AM Karachi time and your fulfillment partner ships the same order twice.

I break the work into three streams — frontend, bridge, reliability+ops — so you see what's in v1, what's deferred to v2, and what the production layer actually costs.

Async delivery by default. Trust-handshake call available on request for this tier only — covered in the FAQ.

NDA-friendly · Fixed-price · Money-back guarantee

Send a brief Request the SOW template

FIG · Integration build architecture

Integration Build three-stream architecture Three parallel streams: frontend with Shopify and Stripe, a bridge with n8n API integrations, and a reliability layer with DLQ, monitoring, and audit wrapping everything. STREAM 1 Frontend STREAM 2 Bridge STREAM 3 Reliability PLATFORM Shopify storefront PAYMENTS Stripe checkout OUTPUT Customer UX real-time n8n ENGINE API Bridge webhook + transform CONNECT 3rd-party APIs CRM · ERP · BI SYNC Data Flow bi-directional DLQ Dead Letter escalate failures MONITOR Observability alerts · logs AUDIT Audit Trail every run logged flow catch watch log
Watch an Order → ERP build run, end to end — interactive, right in your browser. Live demo

Fit

Who this is for

You run a Shopify store, a Stripe-powered SaaS, or a Salesforce instance. You need a specific second platform wired in cleanly.

Common shapes:

  • Shopify + Printful — print-on-demand fulfillment with variant mapping and retry-safe order forwarding
  • Shopify + Klaviyo — abandoned-cart, post-purchase, win-back flows with event reliability
  • Shopify + a 3PL — order routing to ShipBob, ShipHero, or a custom warehouse API
  • Stripe + QuickBooks — automated invoice and revenue sync
  • Salesforce + Stripe — opportunity-to-payment handoff with webhook deduplication

Shopify+Printful is the lead use case I've shipped most recently, but the SKU is generic. Bring your two platforms and the business outcome you need.

Scope shape

The three work-streams

I price and scope the build in three explicit streams. You'll see line items for each in the SOW.

Stream 1 — Frontend integration

Theme or storefront wiring. Whatever your shoppers or end-users touch.

Common deliverables: Shopify Liquid edits for product configurators, variant pickers, or upsell modules · custom blocks or sections in Online Store 2.0 themes · Storefront API integration for headless setups (Hydrogen, Next.js, custom) · Stripe Checkout or Stripe Elements wiring · Salesforce Lightning component edits where the customer-facing piece lives there.

Stream 2 — Bridge

The integration logic itself, running on n8n.

Default deliverables: HMAC signature validation on every inbound webhook (Shopify, Stripe, custom) · idempotency keys on every state-changing operation (no duplicate orders, no duplicate charges) · retry with exponential backoff and jitter on every outbound API call · variant mapping table (explicit, auditable, version-controlled) · transform-and-route logic written as small composable n8n sub-workflows, not one 40-node monolith.

Stream 3 — Reliability + Ops

The layer that's almost always skipped on cheap integrations. The layer that decides whether you sleep through the night.

Default deliverables: dead-letter queue workflow with replay support · retry queue for transient failures (rate limits, 503s, network timeouts) · monitoring hooks (healthcheck pings on success, alert pings on DLQ entries) · audit log of every state-changing operation, written to your sink of choice · operational runbook · handover docs covering credentials rotation, scaling, common error patterns, escalation contacts.

This is the layer freelancers compress out to hit a $1,500 ceiling. I break it out so you can decide explicitly whether you want it in v1 (recommended) or deferred — but you'll see the line item either way.

Scope exclusions

What's NOT included in v1

This list exists so we both know what's on the v2 backlog before you sign. Any of these is achievable. None is in the base SKU.

  • Multi-currency edge cases — currency conversion, FX-rate caching, tax-by-region calculations. Deferred to v2.
  • Admin dashboard UI — DLQ and audit log are queryable via n8n and Postgres. A dedicated dashboard is v2.
  • Historical order backfill — replaying every order from the last 24 months. v2 if you need it.
  • Variant catalog browse-and-buy beyond the hero use case — v1 wires the one product family or SKU pattern in the SOW.
  • Custom checkout, Shopify Functions, or Shopify Plus-tier features — v2 and Plus-tier only.
  • Native mobile app fulfillment (iOS or Android). v2.
  • Real-time stock sync across multiple warehouses. Single-warehouse stock sync is v1. Multi-warehouse with reservation logic is v2.
  • Anything not on the v1 inclusion list and not on this exclusion list — we discuss in writing before scope lock.

Pricing logic

Why three streams matters

A typical $1,500 integration quote looks like one line: "Shopify-to-Printful integration — $1,500 — 2 weeks." You sign.

The freelancer ships a workflow that maps orders to Printful. It works on the demo. Then:

  • A Shopify webhook gets retried after a 504. You ship duplicate orders.
  • A Printful API call hits a rate limit. The workflow dies silently. Three orders never reach fulfillment.
  • A credential rotates. Nobody knows for two days.
  • You ask "how do I check what happened?" — there's no audit log.

These aren't edge cases. They're the default failure modes of integrations without an explicit reliability stream.

By breaking the SOW into Frontend / Bridge / Reliability+Ops, you see exactly where each dollar goes. You can decide consciously whether to defer the reliability layer (don't) or which v2 items to schedule next quarter.

Process

How it works

  1. 01

    Download the SOW template.

    A 4-page document showing what a real noorflows SOW looks like for a Shopify+Printful build. Use it to scope your own request before writing me.

  2. 02

    You send a brief.

    The two platforms, the business outcome, your traffic ballpark, the hero use case, any hard scope items.

  3. 03

    I send a written scope confirmation and a fixed price within 48 hours.

    Three streams broken out. v1 inclusions list. v2 exclusions list. Delivery date.

  4. 04

    You fund the milestone.

    Upwork or direct invoice. 50% on scope acceptance, 50% on delivery acceptance for builds above $4,000. Single milestone for builds at $3,500.

  5. 05

    I build async.

    Mid-flight written check-ins at 50% and 80% completion. You see the staging environment. You sign off. I ship to production.

  6. 06

    One trust-handshake call available on request.

    Up to 30 minutes, recorded, before or during the build. Use it if your buying process or your team requires it. No call required by default.

  7. 07

    Money-back on acceptance failure.

    Acceptance = the v1 inclusions list runs against your real data without diverging behavior. Full refund through milestone funding.

Pricing

Pricing

Scope shapePriceTimeline
Single integration, single hero use case (e.g. Shopify+Printful v1)$3,50014–21 days
Multi-flow integration (e.g. Shopify+Printful + Klaviyo events)$4,50021–28 days
Multi-platform integration with custom transform logic (e.g. Salesforce+Stripe+QuickBooks)$5,00028–35 days

Every price is fixed. The SOW lists the three streams with explicit line items so you see what's in v1 and what's deferred. No hourly drift.

Questions

FAQ

Why is there a trust-handshake call available for this SKU but not for Migration or Self-Hosted?
Build budgets at $3,500–$5,000 cross procurement thresholds in most companies. Sometimes a stakeholder needs to hear my voice once before signing. I will do up to 30 minutes, recorded, async-scheduled. After the call we go back to written-only. The call is on request — not the default flow.
What if my v1 scope creeps mid-build?
Scope changes are handled in writing. If the change is small (under 4 hours of work), I absorb it. If it's larger, I send a written change-order with a fixed price and you accept or defer.
Do you do mobile app integrations?
Not as native iOS or Android. I can integrate a mobile app's backend (your API talking to Shopify or Stripe) with the same n8n bridge pattern. The mobile UI itself is out of scope.
Can I bring my own n8n instance or do you provision one?
Bring your own — cloud or self-hosted. If you need a self-hosted stack, buy SKU C first and then this SKU on top.
What about Shopify Plus features — checkout extensibility, B2B, custom apps?
Plus-tier integration work is out of v1. If your store is on Plus and you need Plus-specific features, I'll scope a custom v2 after v1 ships.
How do you handle credentials?
Stored in n8n's credential vault. Rotated before handover. Documented in the runbook. NDA-friendly throughout.
What happens if the integration breaks after handover?
For 30 days post-handover, any failure traceable to a defect in the v1 deliverable is fixed at no charge. Failures from upstream platform changes (Shopify deprecates an API, Stripe rotates a webhook signature scheme) are covered under SKU I — Retainer.
Can I see references?
Yes — written references from prior clients available on request once you're past intake. I don't list logos publicly because the engagements are NDA-friendly by default.

Ready to scope ?

NDA-friendly · Fixed-price · Money-back guarantee

Three streams. Written scope. Production layer wired in.

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syed@noorflows.com · async only · UTC+5

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