An invoice discrepancy needs a named owner, a precise question, the supporting documents, and a verified closing record. Use this checklist to move the issue between procurement, receiving, the supplier, and finance without losing the next action.
The checklist works for price, quantity, missing discount, and disputed charge issues. It does not replace your company's invoice approval process. Finance retains decisions about posting, payment holds, release, and credit application; procurement establishes the commercial facts and coordinates the supplier correction.
Download the editable invoice discrepancy checklist (Excel). Copy it for each issue, or use its fields in the system where your team already tracks work.
Intake: identify the issue once
- Record the supplier account, buying entity, invoice number, and invoice date.
- Identify the affected invoice and PO lines, including the issued PO revision.
- Assign one owner and record the next action and due date.
- Search for an existing issue, supplier claim, corrected invoice, or credit covering the same lines.
- Capture the invoice processing deadline so finance can assess timing.
Use one parent issue when several lines share the same cause, but retain a separate amount and disposition for each line. If one line needs a receiving investigation and another needs a price decision, give each work item its own owner. A single “waiting” label cannot explain both.
Triage: state what is uncertain
Choose the question that must be answered. “Invoice wrong” is too broad. “Does line 20 include the separately approved expedite charge?” points the investigation toward a specific record and person.
For a price issue, collect the contract or accepted quote, relevant amendment, acknowledgement, and PO. For a quantity issue, collect the receipt allocation, shipment references, and any receiving correction. For a charge or discount issue, identify the agreed condition and evidence that it applied.
Microsoft's invoice matching overview distinguishes price, quantity, totals, and charges checks in Dynamics 365 Finance. Your checklist should preserve the underlying reason for the discrepancy rather than collapsing every failed check into one supplier dispute.
Investigate: make the comparison reproducible
Confirm material identity, unit of measure, price unit, currency, affected quantity, and applicable date. Separate material-price differences from freight, discounts, and other charges. Ask finance to validate any calculation requiring its expertise.
Record what is known and what remains uncertain. If receiving has not allocated a partial delivery, do not invent that allocation to complete the checklist. Assign the receiving question and continue the commercial investigation where it is independent.
Use a short finding:
Observed: [invoice line and recorded value]
Expected: [supported value and applicable document]
Difference: [calculation, currency, scope, exclusions]
Uncertainty: [missing fact or disputed interpretation]
Decision needed from: [named role or owner]
Request: make the next step explicit
When the evidence supports a correction, send the supplier the affected references, the calculation, and the relevant evidence. Ask for a corrected document or an explanation supported by their records. Record the sent date, recipient, and response due date.
When the issue is internal, send the relevant team the same concise workup. Receiving should get the shipment and receipt question; the buyer should get the disputed commercial term. Avoid forwarding an entire email chain with “Please advise.”
If there is no answer by the agreed date, follow up against the missing result. A supplier that has accepted the amount but missed the credit date needs a credit reference and new commitment, not another request to investigate the price.
Verify: a reply is not the closing record
Check the corrected invoice or credit against the agreed outcome. Confirm the supplier account, buying entity, currency, line references, and amount. Preserve the link to the original document so the correction cannot be mistaken for a new unrelated invoice.
Illustrative example: three invoice lines have a combined proposed correction of $450. The supplier issues a $300 credit covering two lines and disputes the third. Record $300 as credit issued, subject to finance verification, and keep $150 under commercial review. Do not close all three lines because a credit arrived.
Finance then confirms the treatment and any settlement evidence required for financial closure. The credit-note tracking guide covers the separate work after a supplier agrees to a credit.
Give every handoff an acceptance test
A handoff is complete when the receiving owner knows the question, has the evidence, and accepts the next action. Forwarding an email is not enough. Record the owner, requested result, due time, and acknowledgement of ownership in the issue record.
For receiving, specify which shipment, quantity, or receipt allocation needs checking. For purchasing, specify which term or amendment needs a decision. For finance, supply the invoice status, relevant correction, and deadline affecting its processing. Avoid asking everyone to “review” the same packet without identifying their separate responsibilities.
If the named owner is absent, use the team's agreed deputy or escalation route. Do not reset the issue's age because ownership changed. Keep the original opening time and add the handoff time, so elapsed time remains meaningful.
Choose the branch that fits the discrepancy
Use the checklist as a routing aid rather than forcing every case into a price claim:
- Price or discount: identify the applicable agreement, effective date, quantity basis, and approved exceptions. Use the price investigation guide for the calculation.
- Quantity: reconcile the invoice with the relevant receipt and prior partial invoices. Ask receiving to establish any missing allocation before requesting a quantity credit.
- Freight or other charge: identify the commercial approval and scope. A charge might be valid even when the material price is wrong.
- Possible duplicate: ask finance to verify document identity, supplier account, prior posting, and replacement references. Similar totals alone do not establish duplication.
- Wrong entity or reference: obtain the factual correction needed to associate the document with the right transaction; finance decides how to process it.
Where two branches apply, create separate work items under the same issue, retaining line-level amounts. The supplier should receive one coordinated request when practical, but internal ownership should remain specific.
Worked handoff: a quantity question and a price question
In this illustrative example, an invoice has two lines. Line 10 bills 200 units at $6.20. The verified applicable price is $6, producing a supported $40 price difference. Line 20 bills 100 units at the correct $4 price, but the visible receipt records only 80 units.
Do not immediately describe the entire $120 as an overcharge. The $40 price issue has support. The possible 20-unit quantity difference, worth $80 at the invoice price, needs a receiving investigation. Assign that question to the receiving owner while purchasing prepares the price evidence.
Receiving finds a second delivery record for the remaining 20 units, linked to the same invoice line. The quantity question closes as valid billing, with both receipts attached. The supplier agrees to the $40 price correction and issues a credit, which finance verifies. The outcome is a $40 verified correction and a resolved quantity question, not $120 recovered.
If the second receipt had not existed, the $80 question would remain open until the shipment, acceptance, and billing facts supported a decision. A missing record is a reason to investigate; it is not proof that the goods never arrived.
Review the queue with explicit clocks
Track time since the issue opened, time since the current action was assigned, and time beyond a promised supplier response. These clocks answer different questions. An issue opened ten days ago may contain a new finance action assigned this morning.
For each open issue, ask what evidence or decision changes its status next. “Waiting on supplier” should identify the requested document or disputed fact. “Waiting internally” should name the responsible role and question. Remove reminders whose prerequisite is still blocked; chasing a credit before the amount is agreed creates noise.
Measure the proportion of closed issues with complete line dispositions and linked final evidence. State the reviewed population and period. Also report reopened issues, withdrawn claims, and the open backlog. A high closure count is not proof of effective resolution if work reappears because the final document was never checked.
Close: capture the disposition and prevent recurrence
Use a specific outcome: corrected invoice verified, credit verified with finance follow-through complete, invoice valid after review, or commercial resolution approved. For a withdrawn or unsupported claim, record who made that decision and why. A queue can be clean without every proposed difference becoming a recovery.
Before closing, confirm:
- Every affected line has a recorded disposition.
- Any remainder has an owner or an approved resolution.
- Finance has the evidence needed for its action.
- The source record or handoff correction has an owner and status.
- The decision, final document, and original evidence are linked.
Review recurring causes separately from individual invoices. Ten corrected invoices caused by the same stale price schedule represent one source problem that still needs attention.
For detailed price investigation, use How to resolve supplier invoice price discrepancies. Mandel's invoice discrepancy workflow is built around completing these handoffs and bringing a buyer the decision with its evidence already assembled.
