You're using Xero. Most NZ businesses are. It handles your invoicing, payroll, GST returns — the financial backbone of your operation. But Xero wasn't built to tell you whether Job #4872 made money or lost it. It doesn't know that the kitchen install you quoted at 30 hours actually took 42. It can't show you that your spray booth is the reason three jobs ran over budget last month. That's the gap job costing software fills. And if it doesn't integrate with Xero, you're going