01 · The problem
A 12-person plumbing firm processed every supplier invoice by hand — typing line items into Sage, reconciling against POs, chasing missing fields. Four hours per week, every week, on busywork.
02 · Our approach
We piloted a Claude-based invoice agent in week two. It extracts line items, classifies them, and posts a draft to Sage for human approval. Eval gate at 96% accuracy on 240 historic samples.
03 · Outcome
After eight weeks live: 84% reduction in invoice processing time, £2,400/month in office time saved, zero accuracy regressions on the human review.