AP Invoice Automation
AP invoice automation built around your exceptions.
We help you design invoice capture, contract-rate checks, and approval routing around your AP rules. The scope defines which steps can be automated and which need review.
Built with the leading AI platforms
The broken Friday
Three thousand invoices a day. One chaotic inbox.
Controllers and AP managers describe manual review across thousands of vendors. The examples below reflect operating problems reported in client discussions.
Bills without PO
Bills land with no purchase order behind them. Someone works out what the bill is even for, who approved it, whether the work happened, before matching can begin.
“We don’t know what we owe”
Heard from the sponsor side of a PE-backed services business: the liability sits in the inbox, and nobody can put an honest number on it. It never clears.
Burned by 20% accuracy
The last tool promised AI invoice processing and read one field in five. Extraction failed quietly — the team keyed everything anyway, with a new system to babysit.
The 70-page PDF someone splits by hand
One supplier sends a single PDF holding 34 sub-invoices. A person splits it, keys each one, re-checks the totals, every month, for every vendor who bills this way.
Price creep nobody is checking
Nobody checks invoice prices against the contracted price sheet — the owner of that job left. Price creep surfaces at the quarterly review, months after the money left.
The payment run that fails quietly
Payment files fail on formatting, duplicates slip through under new invoice numbers, bills for work that never happened get paid. Each error is small. The total is not.
What manual costs
The backlog is a liability, not an inconvenience.
Operating figures reported in client discussions, not outcomes delivered by Zaigo. We establish a baseline for your workflow before agreeing the build.
Reported operating context from anonymized client discussions; not Zaigo results.
How it works
We encode your exceptions.
The rules your best AP person carries in their head become the system. No new inbox for your team to learn.
- 01
Shadow the inbox
We sit inside your AP inbox and catalog every exception type: no-PO bills, stale POs, pass-through charges, rates that crept. The exception list defines the build.
- 02
Encode the rules
Match and exception rules written against your vendors, contracts, and rate sheets: no-PO logic, contract-rate enforcement, approval routing. Every rule documented — the rule set is yours.
- 03
Automate agreed steps
Test the agreed rules against representative invoices. Define confidence thresholds, required approvals, and exception routing before any automated ERP posting.
They sell extraction. Extraction was never the hard part.
The AP software on page one demos beautifully on clean PDFs. Then it meets your inbox: emailed bills, scanned tickets, the 70-page supplier statement. Extraction was never the hard part — your exceptions are.
The tools ship generic rules because they cannot know yours — every real exception reaches a human. We deliver AP automation services as an engagement: our AI reads every invoice against your encoded rules — no new system, no per-seat license.
Questions
Asked by controllers and AP managers.
The straight answers, before you book anything.
What’s holding your business back?
A workflow ready for automation. An AI product you want to build. A problem that has sat on the roadmap for years. Let’s talk about what it would take to solve it.
Talk to Zaigo

