Construction · Accounts payable

A construction firm's accounts payable process now runs without anyone touching it.

Over 100 invoices a month were being handled entirely by hand. From inbox to filed record, the whole process now happens without a person in the loop.

100+Invoices processed monthly, zero manual touches.

The problem

The client processed over 100 invoices a month entirely by hand. Invoices arrived by email in varying formats, standard invoices, AIA G703 and G732 construction documents, mixed attachments. Each one required someone to open it, read it, extract the relevant data, cross-reference vendors, check for duplicates, rename the file, move it to the right folder, and log a clean row to their records. It was the kind of work that looks manageable until volume increases, someone is off sick, or an error makes it into the books. High-cost time on low-value work, with no scalability and no audit trail.

Solution designed

We mapped every step of the current process and identified the decision points: what makes an invoice valid, how vendors are normalised, what constitutes a duplicate, what the filing convention should be. The goal was a pipeline where a human never needs to touch a standard invoice, from inbox to records, the whole path is handled. We designed for the edge cases too: format detection for construction-specific documents, a confidence threshold that flags anything the system isn't certain about for human review rather than processing it incorrectly.

Solution built

InvoiceFlow, an end-to-end intelligent pipeline triggered the moment an invoice lands in Gmail. Attachments are classified by document type using vision AI. Data is extracted and structured. Vendors are normalised against the existing vendor list. Duplicates are caught before they enter the system. Files are renamed to a consistent convention and filed to Drive. Clean, verified rows land in Sheets with full metadata. AIA G703 and G732 formats are detected and handled automatically. Every step is logged with a complete audit trail, every invoice has a full record of what was extracted, what decisions were made, and what the outcome was.

Result

Over 100 invoices processed monthly with zero manual handling on standard cases. The accounts payable process runs itself, from email to filed record, without anyone touching it. Errors from manual data entry are eliminated. The audit trail means nothing is lost or unaccounted for. And the process scales without scaling headcount, volume can double without changing anything.

How it works

Results

100+

Invoices processed monthly

0

Manual touches on standard cases

100%

Audit trail on every invoice

Intelligent pipelineDocument AIAccounts payableConstructionn8nGoogle Gemini
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Taking on new clients / Q3 2026

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