Case Study

From Paper Chase to Digital Record:Automating Accounts Payable at an ETO Manufacturer That Builds Equipment for Industrial Kitchens

Industry
Engineer-to-order (ETO) manufacturing
The Challenge
Invoices and packing slips lived on paper in physical folders, so finding a document meant a trip to a specific plant location, or another plant entirely.
The Solution
An AI agent was deployed to monitor the accounts payable inbox, digitize packing slips, perform three-way matching, and consolidate every related document into one digital record.
The Outcome
The deployment recovered 25 hours per week previously spent on manual invoice processing. Documents that once required a physical search are now available instantly to anyone, digitally, with no repeated trips or manual invoice creation.

THE PROBLEM

As invoice volume grew, the accounts payable process stayed tied to paper.

As invoice volume grew, the accounts payable process at this industrial-kitchen equipment manufacturer stayed tied to paper. Invoices and packing slips were kept in physical folders, filed by location rather than digitized into any system.

Finding a document meant knowing exactly where it lived and going there in person. If the record was at another plant, that meant travel. If the person who needed it wasn't on site, someone else had to locate the paper, scan it, and email it over.

This became especially costly when a single document needed to be reviewed by multiple people over several weeks. Each review cycle meant repeating the same search, the same trip, and the same scan, for a piece of paper that had already been found once before.

WHY IT MATTERED

None of this showed up as a single dramatic failure.

None of this showed up as a single dramatic failure. It showed up as friction, repeated over and over. Every reviewer who needed a document paid the same cost the last person did: locating it, physically retrieving it, and getting it into a form someone off site could actually use.

Information that should have taken seconds to pull up instead depended on someone's memory of where a folder was kept, and their availability to go get it. As invoice volume increased, this pattern didn't get easier. It just repeated more often, across more documents, with no digital record to fall back on.

THE SOLUTION

The AP Automation Solution: What It Actually Took

Thunai AI Advisors deployed an AI agent to sit on top of the accounts payable inbox, digitizing packing slips, three-way matching them against purchase orders and invoices, consolidating every related document into one digital record, and generating the purchase invoice itself, a step the accounts payable team had previously done by hand.

Getting an AP automation deployment to work in daily use took three things:

  • Establishing one trusted structure. Every packing slip, purchase order, and invoice had to be pulled into a single, reliable record. That data foundation work is unglamorous, but nothing else holds up without it.
  • Handling the exceptions. Three-way matches do not always line up cleanly. Getting the agent to recognize and route those mismatches, instead of failing quietly, is where naive automation attempts break down once they hit production.
  • Earning trust through validation. The OCR and matching logic had to be tuned and checked against real invoices, repeatedly, until the accounts payable team trusted the output enough to stop verifying it by hand.

The visible work was the agent. The real work was the data foundation and the exception handling underneath it, and that is usually where in-house attempts stall. That distinction held because Thunai AI Advisors is led by an advisor who has run AI from inside manufacturing operations, not advised on it from the outside.

THE OUTCOME

25 hours per week recovered. Documents available instantly.

The change is qualitative, but it is direct. Documents that once required a physical trip to a specific plant location can now be viewed digitally and immediately, by anyone who needs them, wherever they are. Each transaction now has one record instead of a scattered paper trail, with the packing slip retained alongside it so questions about what was actually received can be answered without searching for paper.

Repeated physical trips to re-locate the same document for successive reviewers are no longer necessary. The accounts payable team no longer creates purchase invoices by hand.

The team recovered 25 hours per week that had been going into manual invoice processing. That figure was measured after deployment. The time people used to spend locating documents was not formally measured, but the searches and trips it removed were a daily source of delay.

WHAT THIS SHOWS

Digitize first. Deploy AI on top of that foundation.

This deployment did not start with AI. It started with digitizing paper records into a structured, searchable foundation, and only then applying an AI agent to automate the matching and data entry work sitting on top of that foundation. For ETO manufacturers, including those building equipment for industrial kitchens, weighing where to start, this is the order that works: build the digital foundation first, then deploy AI on top of it.

Book a Call

If your team is dealing with paper-based processes that slow down accounts payable or any other part of the plant, we'd welcome a conversation about where to start. No commitment required.

No commitment. No pitch deck. Just a conversation.

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