Remove the last manual steps from a vendor invoice to QuickBooks workflow

Eamonn Cottrell had used Claude Code to build a tool that reads vendor PDF invoices, sorts the items and creates matching invoices in QuickBooks Online, despite no prior experience with QuickBooks integrations. Months later he reopened it in Claude Code to strip out the remaining manual work. It now attaches each original PDF to the right invoice, asks him to categorize any new product and then updates the item list itself, deletes local files once done, and skips batches already processed. He tested the duplicate guard by running a batch twice. On a second vendor's workflow, a test run handled 40 PDFs end to end. He says the job once took hours and now takes minutes.