Prepare a supplier review you can defend with evidence
For contract owners with an ongoing supplier relationship. This page walks through the review in four parts: agreed expectations, evidence, the improvement discussion and follow-up owners. The worked example is fictional. Northstar Services reviews its office supplies supplier, Harbor Office Supply, for the first quarter of 2026. All dates and figures are samples.
The approach in one minute
Compare what was agreed with what was observed, then agree what happens next
A supplier review works when everyone looks at the same facts. Start from the expectations already agreed in the contract or service schedule. Set them beside dated records, then discuss any gap with the supplier. Finish by writing down who will do what, and by when.
- Use agreed expectations only. Review against what the supplier committed to, not what you wish had been agreed.
- Date every piece of evidence. "Late a few times" becomes "2 of 50 deliveries arrived after the promised date between 1 January and 31 March."
- Leave with owners. Every action names a role on each side and a follow-up date.
This page covers the ongoing relationship. Supplier selection and contract signature follow their own steps with Finance and Procurement.
What to bring to the review
Four inputs, each separating what happened from what you think about it
Copy the exact wording of each expectation from the contract or service schedule, with its measure and period.
- Example: "Orders delivered on or before the promised date."
- Note the clause or schedule reference so the supplier can find it.
Gather records that show what happened and when, such as delivery receipts, order confirmations and issue logs.
- State the review period and the total, such as 46 of 50 deliveries from 1 Jan to 31 Mar.
- Keep the record dates so the supplier can check them against their own.
Ask the people who order and receive goods what they noticed. Record each observation with a date and the order it relates to.
- Write "Order 1187 arrived with two cartons crushed on 27 Feb."
- Avoid "The supplier doesn't care about packaging."
List any earlier actions that are still open, with their owner and agreed date. Start the conversation with what was promised before adding anything new.
- Mark each as done, in progress or not started.
- Bring proof that completed actions are done.
Worked example: one review cycle at Northstar
-
6 Jan 2026 (sample)
Expectations agreed
The contract owner and Harbor Office Supply's account manager confirm three expectations for the quarter: on-time delivery, replacement of damaged items within 2 business days, and invoices that match the purchase order. -
27 Feb 2026 (sample)
First delivery observation recorded
A requester logs that order 1187 arrived a day after the promised date, with two cartons crushed. The contract owner files the receipt and a photo. -
4 Mar 2026 (sample)
Replacement delivery recorded
The requester filed the damaged-carton claim on Friday 27 February. The replacement arrives on Wednesday 4 March, the third business day after the claim in this example. The contract owner records both dates; the agreed two-business-day expectation was missed. -
8 Apr 2026 (sample)
Improvement discussion held
The contract owner presents the expectations and evidence. Harbor explains that a regional carrier change caused two of the late deliveries. Both sides agree specific improvement actions. -
8 Jul 2026 (sample)
Follow-up review planned
The next review checks the same three expectations over 1 April to 30 June and confirms whether the agreed actions were completed.
How to present evidence: sample measures
Illustrative figures for the fictional Harbor Office Supply review, covering 1 January to 31 March 2026. They are authored sample values, not a live score or an operational measurement. Each shows its count out of a total.
A sample way to open the discussion
“Here is what we agreed, and here is what we recorded, with dates. Before we talk about causes, tell me whether these records match yours.”
Run the improvement discussion
Five steps that keep the conversation on facts and end with an owned action
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1
Present the expectation and the evidence together
Show the agreed wording, then the dated records for the same period. Share the figures in advance, if you can, so nobody is surprised. -
2
Invite the supplier's context
Ask what they saw during the same period. Note any cause they offer, such as a carrier change, and keep it separate from the recorded facts. -
3
Agree specific improvement actions
Choose an action a person can do and a reviewer can verify, such as "Use the original carrier for orders over 20 cartons." Avoid "Improve delivery." -
4
Assign an owner on each side, by role
Name the contract owner's role and the supplier account manager's role for the action. Add a due date and how completion will be shown. -
5
Set the follow-up review date
Agree the next review date and which expectations and period it will cover. Agree when the written summary will be shared.
Worked example: from expectation to follow-up
Fictional Northstar example. Dates and outcomes are samples.
| Expectation | Sample evidence | Agreed action | Owner and date |
|---|---|---|---|
| Deliver on or before the promised date | 46 of 50 on time (1 Jan to 31 Mar) | Use the original carrier for orders over 20 cartons | Supplier account manager, by 30 Apr |
| Replace damaged items within 2 business days | 3 of 4 within target; 1 took 3 days | Supplier confirms claim contact and replies within 1 business day | Supplier account manager, by 22 Apr |
| Invoices match the purchase order | 38 of 40 matched first time | No action. Keep monitoring. | Contract owner, review 8 Jul |
| Open item: packaging standard for cartons | Two crushed cartons on 27 Feb | Supplier shares revised packing guidance | Contract owner to confirm receipt, by 15 May |
After the review
The contract owner coordinates each action with the supplier and keeps the written summary with the contract records. Check progress against the agreed dates, and raise an action that slips with the supplier's account manager before the follow-up review rather than at it.
If an expectation seems unclear, or a gap may affect payment or the contract itself, ask your finance and procurement team before you take it to the supplier. They can confirm the guidance that applies to your location and contract.