API Integration for NZ Businesses
We write custom code that connects Xero, your CRM, your online store, POS and couriers. Data moves both ways, errors get caught and every connection is tested.
The Connections We Build Most
Most businesses run on a handful of systems that were never designed to talk to each other. We write the code that joins them up, using each system's API and webhooks. Your team keeps the tools they know, and the double handling stops.
Xero and Accounting
Online orders, trade orders and job sheets become Xero invoices with the right GST, account codes and contact. Payments flow back so your other systems know what's been paid.
Shopify, WooCommerce and POS
Products, prices and stock stay the same in your online store and your shop counter. Sell the last one in-store and it's gone from the website a moment later.
CRM Integration
Customers, deals and orders match between your CRM and the rest of the business. Sales can see what a customer has bought, and accounts can see who sold it.
Couriers and Trade Portals
A paid order books the courier and prints the label. Trade customers order through their own portal, and those orders land in your system ready to pick and invoice.
One Set of Numbers Across Every System
Picture a parts supplier that sells online, over the counter and to trade customers. Every channel has its own stock count, and none of them agree. Staff spend Friday afternoon fixing Xero by hand.
A two-way sync fixes that. Each change in one system updates the others, and we agree up front which system has the final say for each piece of data.
- Webhooks push changes the moment they happen, not once a night.
- Matching rules stop the same customer turning up twice.
- Reporting. With clean data in one place, a React reporting dashboard can show sales and stock on one screen.
Off-the-Shelf Connector vs Custom Integration
A ready-made plugin is fine when it does exactly what you need. When it doesn't, this is where custom code earns its keep.
| What you need | Typical plugin | Custom integration |
|---|---|---|
| Data direction | Usually one way | Two-way sync, with clear rules on which system wins |
| Your own fields and rules | Only what the plugin offers | Built around how your business works |
| Older or in-house systems | Often not supported | Connected through their API, or a small one we add |
| When a system is down | May fail quietly | Retries, logs each attempt and alerts a person |
| Changes over time | Wait for the vendor | Covered by automated tests, so we can change it safely |
We build our integrations in Node.js back-end code. For simpler jobs you'd like to see and tweak yourself, an n8n workflow may be the better fit. See all our business automation services.
Connect What You Have, Don't Replace It
Plenty of businesses already have a system they rely on. An ordering portal built years ago. A POS the staff know well. A CRM full of history. Ripping those out is costly and risky.
We learn how your setup works first, then build the missing link. If a system has a good API, we use it. If it doesn't, we can add a small one or set up careful scheduled imports. Either way, your team keeps working the way they do now.
Not sure what's possible? Our guide to modern React for business websites explains how a modern site plugs into the rest of your business.
Error Handling, Alerts and Tests
An integration you can't trust is worse than none at all. So we build ours to cope when things go wrong, because sooner or later a system will be slow, down or sending odd data.
- Retries. If Xero or a courier is busy, the integration waits and tries again.
- Alerts. If it still fails, a person hears about it with the details to act.
- Logs. Every sync is recorded, so you can see what moved and when.
- Secure keys. API keys are stored safely, never in a spreadsheet or email.
- Automated tests. A change at one end won't quietly break the other.
You get the code and written documentation at handover. Read client reviews or ask about ongoing website management to keep it all looked after.
One Connection at a Time
You don't need to connect everything in one go. We start with the link that wastes the most time each week, like getting online orders into Xero. Once it runs well, we add the next one.
It starts with a free chat. Then you get a fixed written quote for each phase, so you know the cost before work begins. You own the code, and you deal with a local team in your time zone.
Find out more about our Auckland developers, or visit our Papatoetoe office in South Auckland.
Frequently Asked Questions – API Integration
What is an API integration?
Which systems can you connect?
We already have a custom ordering portal. Do we need to replace it?
What happens when one of the systems is down?
Who owns the code?
Should we use n8n or a custom integration?
Stop Retyping Data Between Systems
Tell us which systems you run and where the double handling happens. We'll tell you honestly what we can connect.
