Prophet 21 AP automation without a single vendor template
ErpInvoiceFlow reads your vendor invoices with AI and produces a ready-to-load P21 vendor invoice import set — header and lines, matched to the Vendor ID and PO already in your system. Built for the distributors who run Prophet 21 with thousands of active vendors and no appetite for a mapping backlog.
INV-48120 · PO 118422 · $12,480.00
90231 · 14 lines · $3,905.55
New vendor · first invoice
BR-7741 · vendor name unclear
Prophet 21 is built for distribution. AP entry is where it stops scaling.
P21 shops tend to have the same shape: a very large active vendor base, a high proportion of PO-backed invoices, and an AP team whose day is consumed by keying header and line detail that already exists on the page in front of them.
The vendor base is the problem
Distribution runs on breadth. When you carry thousands of SKUs across thousands of suppliers, any tool that needs a layout configured per vendor is permanently behind — and the newest vendors, the ones you most want to transact with, are the ones waiting longest.
Line detail is where the hours go
Header-only capture doesn't help a distributor. Someone still keys quantity, unit cost, item, and unit of measure for every line, then reconciles them against the PO. That is the work that actually consumes your AP day.
Freight, tax, and odd formats
Freight lands in a different place on every vendor's invoice. So does the external PO reference and the tracking number. Rules-based capture handles the tidy ones and hands you the rest.
From vendor email to P21 import set
No middleware project, no direct database writes, and nothing posted to P21 that a person hasn't been given the chance to see.
Invoices arrive
Vendors email invoices to an address we provide, or your AP mailbox forwards them. PDFs, scans, and multi-page attachments are all fine — no vendor is asked to change anything.
The AI reads the document
Header and line detail are extracted without a template: invoice number and date, invoice total, freight, PO number, external PO, tracking number, then quantity, unit cost, item, and unit of measure per line.
Vendor and PO are resolved
The extracted vendor name is matched against your uploaded P21 vendor list, with a remit-to fallback for abbreviated names. Below your confidence threshold, the invoice is held for review instead of exported against a guess.
P21 gets a clean import set
We allocate an Import Set Number and render the header and line files, delivered to your P21 environment for import. Deterministic output, ready for your existing approval flow.
Exactly what we hand Prophet 21
Two tab-delimited files that share one Import Set Number — the structure P21's vendor invoice import expects. No surprises, and nothing you can't inspect before it loads.
- Company ID carried per record, for multi-entity environments
- Date format and default unit of measure configurable per site
- Preview an invoice's import set before it is generated for real
- Deterministic output — the same invoice always produces the same files
Branch, location, supplier, and terms columns are left blank by default and configured to your site's policy during onboarding.
Invoice, PO, and receipt — the way P21 sees them
Three-way matching is available for ERP systems that expose API access, which includes Prophet 21. Here is what that means in practice for a distributor.
Matched at the line, not just the total
A header total that ties is not the same as lines that tie. Because we capture quantity, unit cost, and item per line, each line can be compared with the P21 PO line and the receipt behind it.
Partial receipts and back orders
Distribution is full of split shipments. Invoices that cover part of a PO are the norm, not the exception, and the match has to account for what has actually been received rather than what was ordered.
Exceptions stop, they don't post
Price and quantity variances outside tolerance are held with the extracted values shown beside the original document, so AP resolves them in seconds instead of hunting for the source. Nothing enters your ledger silently.
What is available depends on your P21 version and environment. We'll confirm yours during the demo rather than promising it up front.
What P21 teams ask us first
“Will this touch our P21 database?”
No. We generate P21's vendor invoice import files and hand them over through the supported import path. There are no direct table writes, no triggers, and nothing that complicates an Epicor upgrade or a support case.
“We tried OCR before and it didn't stick.”
Usually because it was template-based. Someone had to build and maintain a zone map per vendor, the backlog grew faster than the team, and the tool quietly became shelfware. Removing the templates removes the failure mode.
“Our AP team is two people. Who runs this?”
They do, in less time than they spend keying today. There is no new interface to live in: invoices arrive, clean ones flow through, and the queue your team looks at contains only the exceptions.
“How do we know it got it right?”
Every invoice is traceable end to end, extracted values are shown next to the original document, and anything below your confidence threshold is held. You can also preview the exact import set for an invoice before it is generated for real.
“We're mid-upgrade.”
That is usually the easiest time to add us, because setup averages under two hours and does not compete with your P21 project for IT time. If the timing is genuinely wrong, we'll say so.
“Who else in distribution uses this?”
Nobody yet — we are new, and we would rather tell you that than invent a logo wall. What we can do is capture your invoices live during the demo, so you judge the output instead of a reference list.
Simple, published pricing
Priced on invoice volume — not on vendors, users, or your Prophet 21 connection. Every plan includes unlimited vendors and the P21 integration.
Launch
- Unlimited vendors, no per-vendor mapping
- Prophet 21 integration included
- $0.85 per additional invoice
Growth
- Unlimited vendors, no per-vendor mapping
- Prophet 21 integration included
- $0.45 per additional invoice
Scale
- Unlimited vendors, no per-vendor mapping
- Prophet 21 integration included
- $0.35 per additional invoice
Enterprise
- Unlimited vendors, no per-vendor mapping
- Prophet 21 integration included
- $0.28 per additional invoice
Annual plans are paid up front for a 12-month term. Month-to-month has no commitment and can be cancelled any time. Overage rates are the same on both terms.
Processing more than 10,000 invoices a month?
We'll build a plan around your volume, entities, and ERP footprint.
Put your own P21 numbers in
Published industry benchmarks put the average fully-loaded cost of processing one invoice manually at $10.89, against $2.78 for best-in-class automated AP teams, with a 10.9 day average cycle time and 3.6% of invoices needing rework. Those are industry averages, not our results — so the calculator uses your volume, your minutes per invoice, and your labor rate instead.
Sources: Ardent Partners, The State of ePayables; Institute of Finance & Management (IOFM). Published industry averages across all AP organizations — not ErpInvoiceFlow customer results.
Prophet 21 questions we get asked
See a real invoice land in Prophet 21
Send us a couple of your own vendor invoices — including the ugly ones. We'll capture them live and walk through exactly what the P21 import set looks like before it reaches your system.
- A live capture on one of your own P21 vendor invoices
- The actual header and line import files, field by field
- Straight answers on vendor matching, PO matching, and pricing
We go deep on two other ERP families
SAP AP invoice automation
Invoice capture and posting for SAP S/4HANA and SAP ECC, without per-vendor template maintenance.
Infor AP invoice automation
Invoice automation across Infor CloudSuite, M3, and LN — three genuinely different products.
Or start from the AP invoice automation overview.