Jonathan Bird Web Development
  1. Integrations
  2. Xero Integration
ERP & Accounting

Xero Integration for Shopify, Adobe Commerce & Custom Sites

Sync invoices, payments, contacts and inventory between your website and Xero, without the month-end reconciliation headache.

Most Xero integrations work beautifully right up until the first partial refund, the first multi-currency order, or the first surcharge. Then the numbers quietly stop matching, and nobody notices until someone is reconciling by hand at the end of the month. I build Xero integrations that hold up under the messy reality of real trading: retries that do not double-bill, proper handling of credit notes and refunds, and reconciliation reporting so you can actually see that the two systems agree.

Talk to me about Xero
Works with Shopify Adobe Commerce WordPress Laravel & custom builds

Proven in production

I have shipped Xero integrations into production alongside ERP syncs handling ten million rows nightly at 100% success. The engineering standard is the same either way.

Capabilities

What I build with Xero

The Xero integration work I most often take on. If yours sounds like one of these, we should talk.

Orders & Invoices

Every order on your store becomes an invoice in Xero, mapped to the right accounts, tax rates, and tracking categories. Idempotent by design, so a retry after a timeout does not create the same invoice twice.

Refunds & Credit Notes

Full refunds, partial refunds, and returns handled as proper Xero credit notes rather than fudged adjustments. This is the single most common place off-the-shelf connectors get it wrong and where reconciliation starts drifting.

Customers & Contacts

Website customers matched to Xero contacts without creating duplicates every time someone checks out with a slightly different email or billing address. Sensible matching rules, agreed with you rather than guessed at.

Inventory & Products

Keep Xero inventory items in step with your product catalogue, including cost prices and account codes. Useful if Xero is your source of truth for stock, and honest advice if it should not be.

Multi-currency & Surcharges

Selling internationally, or passing on card surcharges? Both are places where a naive integration produces invoices that look right and reconcile wrong. I handle exchange rates, rounding, and surcharge line items explicitly.

Reconciliation & Monitoring

OAuth token refresh handled properly, Xero rate limits respected, failures alerted rather than swallowed, and a reconciliation report that tells you the store and the ledger agree. You should not be finding out about a broken integration from your accountant.

How it works

A Xero integration built to last

The same approach behind every integration I ship, from the first conversation to the years of maintenance that follow.

01

Scope & map

We map exactly what needs to move between Xero and your store: orders, stock, pricing, customers, and where the awkward edge cases hide.

02

Build for redundancy

I build the integration around the failure modes: retries with backoff, idempotent writes, and reconciliation, so it holds up when the API has a bad day.

03

Test & reconcile

Tested against real data in a safe environment, with reconciliation reporting that proves Xero and your store actually agree before go-live.

04

Monitor & maintain

Monitoring and alerting from launch, so failures surface immediately, and the same developer who built it is the one who keeps it running.

The Difference

A Xero integration built for the messy days, not the demo.

Anyone can push an order into Xero on a sunny day. The difference shows up on the day a customer part-refunds a multi-currency order paid with a surcharge, the API times out mid-request, and the retry fires. I design for that day first.

A connector app or a typical agency

Works until the first refund.

  • Off-the-shelf connector handles the happy path, then breaks quietly on partial refunds, multi-currency, or surcharges.

  • A timeout mid-request means the retry creates a second invoice, and now your ledger is wrong in a way nobody notices for weeks.

  • No monitoring. The integration fails silently and you find out at BAS time, or when your accountant asks why nothing balances.

  • Contacts duplicate every time a customer checks out with a different billing address, and your Xero contact list slowly becomes unusable.

Working with me

Built around the failure modes.

  • Refunds, credit notes, multi-currency, rounding, and surcharges are handled explicitly, because that is where reconciliation actually goes wrong.

  • Every write is idempotent. A retry after a timeout resolves to the same invoice, not a duplicate.

  • Monitoring, alerting, and a reconciliation report from day one. Failures surface immediately, not at month end.

  • Matching rules for contacts are agreed with you up front, so you get one contact per customer rather than one per order.

FAQ

Common Xero Integration Questions

The questions I get asked most often about integrating Xero.

Can Xero sync automatically with Shopify?

Yes. Orders, payments, refunds, and customers can all flow from Shopify into Xero automatically, and the same applies to Adobe Commerce or a custom storefront. Inventory can flow the other way if Xero is your source of truth for stock. The real question is not whether it can sync, but how it behaves when something goes wrong mid-sync. That is what separates an integration you can trust from one you have to babysit.

What's the difference between a Xero connector app and a custom integration?

A connector app is cheap, fast to set up, and fine if your trading is simple. It starts to hurt when your business is not simple: customer-specific pricing, partial refunds, multi-currency, surcharges, unusual tax treatment, or a product catalogue that does not map cleanly onto Xero items. At that point you are either bending your business to fit the app, or paying someone to reconcile by hand every month. A custom integration costs more up front and then does exactly what your business actually does.

How are refunds and credit notes handled?

Properly, as Xero credit notes allocated against the original invoice, including partial refunds and returns. This matters more than people expect. Most reconciliation drift I get called in to fix traces back to refunds being written as ad hoc adjustments, or not written at all, so the store and the ledger slowly disagree by an amount nobody can explain.

Can Xero handle multi-currency orders from my store?

Xero supports multi-currency on its higher plans, and yes, I can map orders in other currencies onto it. The care goes into exchange rate handling and rounding, since a cent of rounding difference per order compounds into a reconciliation problem across thousands of orders. I make the rate source and rounding behaviour an explicit decision rather than an accident.

How long does a Xero integration take?

A straightforward orders-to-invoices sync is usually a couple of weeks. Add customer-specific pricing, multi-currency, inventory sync, or an ERP in the middle and it grows from there. The scope depends on how you trade and the complexity of the requirements. Once that is defined, I can provide an accurate estimate.

Talk to me about your Xero integration

For over 15 years I've helped Australian enterprise, government, and not-for-profit organisations ship websites that are fast, secure, and accessible. Get in touch to discuss your project today.