How an $8M e-commerce company automated AP and cut DSO from 45 to 28 days
An $8M e-commerce company with 20 employees eliminated 90% of manual invoice processing and reduced days sales outstanding from 45 to 28 days using AI-powered AP automation.
90% automated
Invoice processing
28 days
Days Sales Outstanding
2/quarter
Payment errors
62 days
Full ROI achieved
The company
An $8M e-commerce company with 20 employees, selling across multiple channels (Shopify, Amazon, wholesale). They used Zoho Books for accounting and had a single AP clerk processing all vendor invoices alongside the controller.
The challenge
The company processed over 400 invoices per month from 80+ vendors. Every invoice arrived in a different format — PDF attachments, scanned documents, even photos of paper invoices from smaller suppliers. The AP clerk manually keyed each invoice into Zoho Books, matched it against purchase orders, and routed it for approval.
The manual process created a cascade of problems. Payment errors averaged 15+ per quarter — duplicate payments, wrong amounts, missed early-payment discounts. DSO had crept up to 45 days because the team couldn't process vendor invoices fast enough to take advantage of payment terms.
The controller estimated the company was leaving $2,000–$3,000 per month on the table in missed early-payment discounts alone. Add the labor cost of the manual processing and error correction, and AP was consuming far more resources than a company their size should be spending.
What we built
We built an AI-powered AP pipeline that started with intelligent invoice capture. The AI agent extracted key fields (vendor, amount, line items, payment terms) from any invoice format — PDF, scan, or photo — and populated Zoho Books automatically.
The second component was automated 3-way matching. The AI matched invoices against purchase orders and receiving reports, flagging discrepancies for human review. Clean matches (about 85% of invoices) flowed straight through to the approval queue.
Finally, we implemented smart payment scheduling that optimized cash flow by prioritizing early-payment discounts while respecting the company's cash position. The system automatically calculated which discounts were worth taking and scheduled payments accordingly.
The results
Before
100% manual
After
90% automated
Invoice processing
Before
45 days
After
28 days
Days Sales Outstanding
Before
15+/quarter
After
2/quarter
Payment errors
Before
N/A
After
62 days
Full ROI achieved
How much time does AI AP automation save for e-commerce companies?
For this $8M e-commerce company, AI-powered invoice capture and 3-way matching automated 90% of manual AP processing, reduced DSO from 45 to 28 days, cut payment errors by 87%, and achieved full ROI in 62 days.
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