Audit
Purchasing audit: what Zylio checks in your documents, and what you get out of it
A Zylio purchasing audit checks every invoiced line in a scope against what was negotiated: framework contracts, amendments, rate cards, price lists, purchase orders and delivery notes. The result is a dated, line-by-line finding in which every gap is shown with the clause and the document that prove it. You then decide what to dispute, tolerate or renegotiate.
Scope
What a purchasing audit checks, line by line
Not a sample of a few invoices, nor a market average: every line in the scope, against your own agreements.
Invoiced prices
Every unit price is compared with the negotiated price for the same reference, the same unit and the same period: rate card, framework contract schedule, price list or accepted quote.
Applied conditions
Volume discounts, tiered pricing, indexed revisions, ancillary fees: the audit checks that every written condition was actually applied, and on the right date.
Quantities and duplicates
Ordered, delivered and invoiced quantities are matched. Duplicate invoices, exact or disguised, and credit notes never applied are isolated with their supporting document.
The mechanism
Which documents, and how they are checked against each other
The audit starts from your documents as they exist: native PDFs, scans, spreadsheets, ERP exports. The Capture agent reads them and extracts every line: supplier, reference, quantity, unit price, discount, tax, date. Contracts, amendments and rate cards become a structured price schedule, pricing rules included; invoices become lines that can be compared with that schedule.
The Compliance agent then checks every invoiced line against the schedule, and the Matching agent matches it with the corresponding order and delivery. Every extracted value stays linked to the exact place in the document where it was read: when a gap is flagged, the invoice line and the clause it contradicts are displayed side by side. Nothing is written to your ERP; we read exports, we never modify the source.
Contracts, rate cards, price lists, quotes, orders, deliveries, invoices.
How it runs
Three steps, one dated result
- 01
Scoping
You choose the scope (a purchasing category, a supplier, an entity, a period) and send us the corresponding documents and exports.
- 02
Analysis
The agents read every line in the scope and check it against the agreements. Whatever matches no rule is raised as an exception, with its reason.
- 03
Delivery
You receive the finding: quantified gaps, sorted by supplier and by cause, each with its evidence, and our reading of it, together with you.
Contract coverage, price history and variability, credit notes owed.
What you receive
A defensible finding, not another report
The deliverable of a purchasing audit is a dated finding of what was paid outside your agreements, on the analysed scope. Every gap appears with the invoiced line, the contractual clause and the source document, all exportable. That is what makes it usable: in front of a supplier to request a credit note, in front of the finance department to justify a provision, in front of an auditor to document a control.
What you do with it remains your decision. Zylio contacts no supplier, files no claim and blocks no payment. The documents gathered for the audit do not go back into a binder: they form a reusable repository, on which the agents can then verify the following invoices continuously.
The audit says what was lost; the agents keep it from happening again.
What it is not
What a Zylio purchasing audit does not do
A purchasing audit is not an organisational consulting engagement: it does not rewrite your procedures or redesign your supplier panel. Nor does it replace a market study: it compares your invoices with your own agreements, and places your prices in their history. It promises no automatic savings. It quantifies what has already been paid in error, with evidence, and leaves you to decide what comes next.
Data and evidence to decide; not a consulting firm.
Nothing is lost. Everything can be checked, everything can be proven.
- The contract clause and the invoice line, highlighted side by side.
- Every extracted value stays linked to the exact place in the document where it was read.
- The same case produces the same decision, today as in six months: the rules are applied deterministically.
- No discrepancy is set aside in silence. Anything that matches no rule is raised, with its reason.
- The agent records what it did, in the order it did it: who, what, how much, when.
Frequently asked questions
Which documents do I need to provide for a purchasing audit?
The agreements that govern (framework contracts, amendments, rate cards, price lists, accepted quotes) and the invoices in the scope, with orders and deliveries where possible. Formats hardly matter: PDFs, scans, spreadsheets, ERP exports. We read what exists, with no preparation on your side.
Do I need to connect Zylio to my ERP for the audit?
No. The audit works on exports and documents, outside your system. Nothing is installed in the ERP and nothing is written to it. Data is hosted in France, under ISO 27001 and SOC 2 Type II, and is never used to train a model.
How are the gaps presented?
Every gap is quantified and sorted by supplier and by cause: off-schedule price, discount not applied, revision outside its due date, duplicate, credit note not applied. For each one, the invoice line and the clause it contradicts are displayed side by side, with a link to the source document.
What happens after the delivery?
You decide: dispute, tolerate, renegotiate. We contact no supplier on your behalf. If you wish, the agents take over the repository built during the audit and verify the following invoices continuously, so that the same gaps do not recur.
Measurable impact in every environment
More than 5 million procurement documents analysed
Between 1 and 7% of margin recovered
on the scope analysed
From 15 to 45% of time given back to teams, per FTE
depending on the scope and on data maturity
Zylio fits into your existing ecosystem.
The ERP runs the process. Zylio handles the exception and recovers the value that escapes it: invoices without a purchase order, line-by-line price discrepancies, duplicates and overbilling, off-contract spend.
Your data under high security.
Zylio meets the most demanding standards, and nothing is committed without your approval.
- Certifications
- Hosting
- Encryption
- Access
See what this looks like on your own data
Twenty minutes, on a spend category of your choosing. We show you what the agents detect, with the evidence behind it.
- No commitment, on your own data
- Result in 3 weeks
- 20 minutes, no sales pitch
- Your data stays hosted in France
- No change of tool or process