Apps & Integrations

Shopify Integration Development that keeps your data in sync

For Australian merchants running Shopify alongside an ERP, PIM, WMS or accounting platform. We build monitored, resilient data sync so orders, inventory and customers stay accurate across every system.

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20+

Shopify builds shipped

6–10 wks

Typical integration build

Monitored

Retries, alerting & audit logs

Real-time

Or scheduled, per system

When your systems don't talk, your team pays for it

Shopify is one system among several. The gaps between them are where time and accuracy leak away.

Manual re-keying

Staff copy orders and stock between Shopify and your ERP by hand. It is slow, and it is where errors creep in.

Overselling and stockouts

Inventory drifts out of sync across channels, so you oversell lines you cannot fulfil and hide stock you could sell.

Silent sync failures

A brittle connector fails overnight and nobody knows until orders go missing or the accounts will not reconcile.

Fragile app-store connectors

Generic connectors cannot map your fields, handle your edge cases, or scale past a certain order volume.

Slow financial close

Orders, refunds and payouts do not flow cleanly into your accounting platform, so month-end drags on for days.

No single source of truth

Customer and product data lives differently in each system, and nobody trusts which record is correct.

Where the work sits

A clear split so there are no surprises at go-live.

Nexly handles	Your side	Out of scope
Data mapping	Field mapping and transformation logic	Sign-off on the business rules	Re-modelling your ERP schema
Connectivity	API, webhook and auth setup	Credentials and sandbox access	Licensing for third-party systems
Reliability	Retries, alerting and monitoring	Who receives the alerts	A round-the-clock manned helpdesk
Go-live	Staging tests and a cutover plan	UAT and final approval	Staff process training beyond handover

Is this the right fit?

This is for you if

You run Shopify alongside an ERP, PIM, WMS or accounting platform
You have outgrown a generic app-store connector or manual CSV exports
You need inventory and orders accurate across every channel
You are on Shopify Plus with custom field mapping or high order volume

Probably not a fit if

A single supported app already does the job well out of the box
You want to replatform rather than integrate what you have
The target system has no API or reliable export we can read
You are not on Shopify, we specialise in Shopify only

What integration development covers

Scoped to your systems and data, built to be operated by your team.

What's included

Discovery and data mapping across Shopify and each system
Bi-directional sync for orders, inventory, products and customers
Error handling with retries, dead-letter queues and alerting
A monitoring dashboard and audit logs for every sync
Documentation and handover so your team can operate it

Systems we connect

ERP: NetSuite, MYOB Advanced, Microsoft Dynamics, SAP
Accounting: Xero, QuickBooks, MYOB
WMS and 3PL: warehouse, fulfilment and freight systems
PIM and CRM: product data and customer platforms
Marketplaces and POS where a clean data bridge is needed

Technical deliverables

A middleware or serverless sync service, hosted and monitored
Shopify Admin API and webhook integration, GraphQL-first
Idempotent, rate-limit-aware jobs that replay safely
Field mapping and transformation rules, version-controlled
A staging environment and test suite before go-live

How an integration comes together

A staged path from audit to a monitored, live sync.

Discovery & mapping

We audit both systems, agree the data model, and document every field, rule and edge case. Week 1.

Architecture

We choose the sync patterns, real-time or scheduled, and design for rate limits and failure. Week 1–2.

Build

We develop the sync service, transformations and webhooks against a staging store. Week 2–6.

Test & reconcile

We run real data through, reconcile counts and totals, and prove the edge cases behave. Week 6–8.

Cutover

We migrate, switch traffic, and monitor closely through the first live cycles. Week 8–9.

Monitor & handover

We hand over dashboards, docs and alerting, then support the settling-in period. Week 9–10.

How we keep sync trustworthy

Controls that stop small failures becoming big ones.

Idempotent jobs so a retry never duplicates an order
Rate-limit handling and back-off against Shopify and target APIs
A dead-letter queue for failed records, with replay
Reconciliation checks on counts and totals after each run
Alerting to email or Slack the moment a sync fails
Audit logs for every record written, for full traceability

Integration investment

Typical bands, scoped after discovery. Priced on systems, data volume and sync complexity.

Number of systems and directions of syncReal-time versus scheduled requirementsComplexity of field mapping and business rulesData volume and peak order throughputWhether the target system has a clean, documented APIOngoing monitoring and support needs

Single system sync

$9,000–$18,000

One platform, e.g. Xero or a WMS, with defined mappings

Multi-system integration

$18,000–$40,000

ERP plus fulfilment, bi-directional and monitored

Complex / high volume

$40,000+

Multiple systems, custom middleware, high throughput

Integration development FAQs

You do. All code, mappings and documentation are yours, handed over in your repository at the end of the build.

Most take 6–10 weeks depending on the number of systems and sync complexity. We confirm a firm timeline after discovery.

We monitor the first live cycles, then offer a care plan for ongoing monitoring, tweaks and new mappings as your systems change.

Yes. We build around your current stack and test that existing apps and workflows keep functioning through cutover.

It depends on the data. Orders and inventory usually run near real-time via webhooks; large catalogues or finance data often sync on a schedule.

Failed records go to a dead-letter queue and retry automatically. If they still fail, you get an alert with the detail needed to act.

If it has an API or a reliable export, almost certainly. We regularly connect NetSuite, MYOB, Dynamics, Xero and QuickBooks.

Often, yes. We migrate off brittle app-store connectors to a service that maps your fields and handles your edge cases.

Credentials are stored securely, data moves over encrypted connections, and every record written is logged for audit.

Related services

Get your systems talking

Book a discovery call and we will map your Shopify integration, the systems involved, and a realistic scope and timeline.

Book a call

Name Work email Store URL Systems to connect