More sales means more vendor invoices, and in a legacy ERP every one of them gets keyed by hand. Here is what that costs a distributor, and what changes when the system does the reading.
Sales were up last year, so the invoice pile was up, so a request went in for another AP clerk. If that is the second or third time in a few years, the problem is not your team. It is a system that can only add capacity one person at a time.
US merchant wholesalers sold $817.5 billion in August 2026, up 15.6% from August 2025 (US Census Bureau, October 2026). Those figures are not adjusted for price changes, so part of that jump is higher prices and tariff pass-through rather than more boxes. For AP, it barely matters. More dollars moving means more vendor invoices, more freight bills, and more credit memos to match against receipts.
In most legacy systems, each of those documents arrives as a PDF in a shared inbox. Someone opens it, finds the vendor, finds the PO, and keys the lines. That process scales in one direction only: more invoices, more hours, more people.
APQC’s benchmarking puts the gap in plain numbers. Top-performing organizations spend about $0.38 per $1,000 of revenue to run accounts payable, while bottom performers spend about $0.92 (APQC, March 2026). For a $250 million distributor, that difference works out to roughly $135,000 a year. That figure is our math on APQC’s published benchmarks, so treat it as directional.
The salary line is only part of it. Hand keying brings duplicate payments, early-pay discounts that expire in the queue, late fees, and vendor calls asking where their money is. It also slows the close, because the books cannot finish until AP does.
The Bureau of Labor Statistics projects employment of bookkeeping, accounting, and auditing clerks to decline 6% from 2025 to 2035, and it names software automation as the reason (BLS Occupational Outlook Handbook). The work is moving into systems across the economy. Hiring still works in the short term, but each new clerk adds training time and another person who knows which vendors always send invoices wrong. That knowledge walks out the door when they do.
For most distributors in the $30M to $2.5B range, Dynamics 365 Business Central covers this without adding more system than the team can run. Electronic invoices come in through the E-Documents framework. Payables Agent goes further: it watches a shared AP mailbox, reads PDF invoices, matches each one to a vendor, and drafts the purchase invoice with the reasoning behind each suggested value. A person reviews the draft and finalizes it, and any new vendor it creates stays blocked until someone approves it (Microsoft Learn).
One honest note: Payables Agent is in public preview today. The pattern we see work is to pilot it on your highest-volume, most predictable vendors first, and keep a person on review while it learns your accounts.
Once you are running multiple legal entities or very high invoice counts, Dynamics 365 Finance & Supply Chain Management adds Invoice capture. It uses AI-based OCR to read invoices across vendors and formats, and with touchless processing set up, validated invoices move into Finance without anyone rekeying them (Microsoft Learn). Matching policies check invoices against POs and receipts, and centralized payments let one AP team pay for several companies. If you are not sure which tier fits, our Dynamics 365 Finance & Supply Chain Strategic Assessment maps your processes against both before anyone talks license counts.
If the first number is flat while sales climbed, your AP capacity is tied to headcount. That is the cost growth keeps charging you.
Western Computer has spent nearly 40 years and more than 1,750 Dynamics implementations helping distributors right-size their systems, which usually starts with finding the work people do that the software should be doing. AP is one of five places an aging ERP quietly taxes the finance team, and we put all of them in writing.
Read The CFO’s Hidden Tax: What an Aging ERP Really Costs a Distribution Business
Want to see it live first? Join our upcoming Business Central webinar, or use the Microsoft Dynamics 365 pricing estimate for a self-guided read on fit and cost.