Why Canary
Most operations already own a finance system (ERP), a maintenance system (CMMS), an accounts payable tool, and an audit relationship. Here is where each one stops, and where Canary starts.
They find overcharges years after you paid them, and keep a share of what they claw back. Canary runs the same check before the payment run closes, continuously, and you keep all of it. When you do want a lookback, the evidence is already organised.
Three-way matching proves the purchase order, the goods receipt, and the invoice agree with each other. None of those three documents knows what the contract says. An inspection can match its purchase order perfectly and still be a service your agreement already funds at no charge. Canary sits on top of your finance system, whatever it is, and its verdicts go to the people who approve the invoice, before the payment run.
Your maintenance system tracks the work: what was done, when, by whom. It does not know what the contract says the work should cost, whether the part fitted was still under warranty, or whether doing the job that way kept your coverage valid. Canary reads the agreements and answers those questions, alongside the system your team already uses.
Capture digitises the lines. It does not read clause 11.4. Accounts payable software routes an invoice for approval faster. Canary tells the approver whether the charges on it are actually owed.
Knowing a technician was on site for six hours does not tell you the inspection was already included in the agreement, or that the part they replaced was inside its warranty period. Those are clause questions about an asset, not timesheet questions. And many of the operations Canary serves have no gate at all: campuses, hospitals, property portfolios, road networks.
Complex contracts are the reason Canary exists. Tiered rates, rebates, escalators, included-services schedules, and amendment chains are exactly what gets lost between procurement, maintenance, and accounts payable. Canary reads all of it, and every verdict cites the clause it rests on, so you can check its work.