The Challenge
The client ran a growing retail operation with both online and wholesale channels. Every time a specific type of Shopify order came through - wholesale, split-payment, or custom-invoiced - someone on the team had to manually create a matching invoice in Xero.
It wasn’t complicated work, but it was relentless. Mistakes crept in. Invoices got missed. Month-end reconciliation became a multi-day headache. The team was spending roughly 2.5 hours every week on a process that should have been automatic.
The real cost wasn’t just time - it was the cognitive load of remembering which orders needed manual handling and which didn’t.
The Approach
Before writing a single line of code, Artie mapped out the full order lifecycle. Which orders triggered a Xero invoice? What were the exception cases? What happened when an order was refunded or partially fulfilled?
The team walked through their existing workflow step by step, flagging the edge cases they’d learned to handle through trial and error. This mapping phase took two sessions and produced a decision tree that covered every scenario.
Only then did the technical solution take shape - and it was far simpler than what a “just automate it” approach would have produced, because the rules were crystal clear.
The Solution
A webhook-driven automation that listens for qualifying Shopify orders and creates the corresponding Xero invoice automatically. The system handles:
- Order filtering - only specific order types trigger invoice creation
- Line item mapping - Shopify products matched to Xero inventory items
- Tax handling - correct tax rates applied based on customer type and region
- Error alerting - if an invoice fails to create, the team gets a Slack notification with the order details so nothing falls through the cracks
- Refund sync - when an order is refunded in Shopify, the Xero invoice is voided automatically
The whole thing runs on a lightweight Node.js service - no ongoing maintenance beyond monitoring.
The Result
Month-end reconciliation went from a multi-day process to a spot check. The team no longer worries about missed invoices or mismatched numbers. The automation has been running for over a year with zero manual intervention.