Seamlessly Integrate Your Legacy Systems with Xero Accounting

Many businesses rely on established legacy systems that hold critical operational and financial data.

Replacing these systems is often costly, risky, and disruptive. At Whalley Systems, we specialise in integrating existing business systems with Xero Accounting, allowing you to automate financial workflows without changing the systems you already depend on.

Our Xero integration solutions ensure accurate, real-time financial data flows between your operational systems and Xero, reducing manual work, errors, and delays.

When you need us, we’ll be on hand to help via our reliable IT service desk.

Examples of what we integrate with Xero

/  Production management systems

/  Job costing and work order systems

/  CRM platforms

/  Labour management systems

/  Custom-built or legacy databases

/  Inventory and stock control systems

Automated Workflows & Processes

Sales Invoices

automatically created in Xero from your internal systems.

Purchase Bills

generated directly from supplier or production data.

Job Costing & Revenue Tracking

aligned with Xero accounts.

Customer and Supplier Sync

between systems and Xero.

Payment Status Updates

reflected back into your legacy system.

Payroll & Timesheet Data

feeding into accounting processes.

This eliminates duplicate data entry and ensures everyone works from a single source of truth.

Custom Integration, Not One-Size-Fits-All

+  Map data between systems and Xero correctly

+  Analyse your existing workflows

+  Design custom integration logic

+  Test thoroughly before going live

+  Support enhancements and future changes

Secure & Reliable Integration Architecture

We build integrations that are:

Secure and compliant with Xero API standards

Reliable with error handling and logging

Scalable as your business grows

Designed for performance and data integrity

 

Why Integrate Instead of Replace?

Replacing a legacy system can be expensive and disruptive. Integration allows you to:

Keep systems your staff already know

Avoid retraining and operational downtime

Extend the life of existing software investments

Improve financial visibility without major change

Scale automation gradually and safely

Our approach is integration-first, not replacement-first.

Get Started with Xero Integration

If you want to automate accounting processes, reduce manual work, and connect your existing systems to Xero without disruption, we can help.

Book a strategy session with a Whalley Computer Systems expert

Book a Consultation