Vendor management: process, owners and supplier reviews
Run a manufacturing supplier review with a worked example: reconcile open quantities, check revisions, assign approvals and verify action closure.
Vendor management is the work of selecting suppliers, agreeing how you will work together, monitoring performance and deciding when the relationship needs to change. This guide focuses on suppliers of physical parts and materials for manufacturing.
A supplier review should leave you with decisions somebody can carry out: which commitment needs checking, which recovery option is approved, who owns the next step and what evidence will close it. A good historical score helps the discussion. It does not settle those decisions.
What does vendor management cover?
IBM's supplier-management overview spans qualification, onboarding, transactions and collaboration. The following is one practical way to organize that work, rather than a prescribed number of lifecycle stages.
| Stage | Decision to make | Evidence to retain |
|---|---|---|
| Select and qualify | Can this supplier meet the part and business requirements? | Approved scope, capability checks and unresolved conditions |
| Agree the working rules | What is being bought, and how are changes approved? | Order terms, specifications, contacts and approval responsibilities |
| Onboard | Can both sides use the right records and communication route? | Verified supplier data, document references and agreed response process |
| Execute and review | Which current exception needs a decision? | Commitments, receipts, quality status and an action record |
| Improve or exit | Should you develop, retain or replace the relationship? | Verified corrective actions, remaining obligations and an authorized transition plan |
The labels overlap with supplier relationship management, or SRM. Define the scope your team means. In software purchasing, a vendor management system can also mean a platform for external services and contingent workers, as SAP explains. Check the actual workflows before comparing tools.
Who owns vendor management?
Give the supplier relationship one coordinator without making that person the approver for every decision. A workable division of responsibility is:
- Purchasing coordinates supplier commitments, commercial discussions and the shared action list.
- Planning checks which material requirement or build is exposed and whether a proposed recovery fits the production plan.
- Logistics and receiving check shipment evidence, arrival and recorded receipt.
- Quality and engineering decide specification, revision and release questions within their authority.
- Finance and the responsible commercial owner approve the costs, payment or customer changes assigned to them by company policy.
Use your actual approval rules. A buyer who can request a new date may not be authorized to accept a different revision or commit extra freight. Keep the supplier's named counterpart on the action too; an internal owner cannot complete the supplier's work for it.
Microsoft's vendor-collaboration documentation distinguishes a supplier response from order confirmation. The update and approval path depends on configuration.
What should a supplier review decide?
Bring a short supplier-level view, with links to the underlying orders. Include the performance period and metric definition, current open commitments, changed dates or revisions, unresolved quality issues and actions from the last review.
Then work through four questions:
- What has changed? Separate a supplier statement, your recorded plan and verified events. Keep the source and date of each.
- What does it affect? Identify the part, site and production need. Use the supplier risk assessment for the wider exposure; do not let an average score hide one critical dependency.
- Who can decide? Name the action owner, supplier counterpart and approver for any cost, schedule or specification change.
- What will close the action? Agree the deliverable, deadline, evidence and next check before ending the review.
Use purchase order tracking for line-level follow-up. The review brings those lines together to decide what the relationship needs: immediate recovery, a recurring-process correction, an escalation or a longer-term sourcing decision. Do not wait for a scheduled meeting when an exception needs action today.
Worked example: a 95% score and two unresolved orders
This is a hypothetical example, not a customer result. All dates are in 2026.
At a weekly review on Monday, November 2, the supplier's previous month shows 19 of 20 due lines received in full by their baseline agreed receipt date: 19 ÷ 20 = 95%. The denominator includes all 20 lines due in that period, including the late one. This is a defined line-based delivery measure, not a quality score. Preserve the baseline and record recovery dates separately.
Two current orders still need decisions. On PO617, line 1, you ordered 120 housings and have received and accepted 40. Your report shows 80 still to receive. The supplier reports 20 dispatched and 60 not yet shipped.
| Quantity | What it means | What it does not establish |
|---|---|---|
| 120 ordered | Total quantity on PO617 line 1 | Current usable stock |
| 40 received and accepted | Recorded accepted receipts | Availability after other allocations |
| 80 still to receive: 120 − 40 | Buyer's outstanding receipt quantity | That all 80 remain at the supplier |
| 20 claimed dispatched + 60 unshipped | Supplier's explanation of the outstanding 80 | Verified receipt or release of the 20 |
The supplier's 60 open to ship can reconcile with your 80 open to receive if the dispatch of 20 is verified. Agree the meaning of each report before demanding a quantity correction. Match the shipment evidence to the order line, quantity and destination; a dispatch claim must not become an ERP receipt.
Planning has already accounted for usable stock and other allocations. It still needs 50 more usable housings by Wednesday, November 4, for production on Thursday, November 5. The material-recovery option is to verify that the 20 reported dispatched can be usable on Tuesday, November 3, and obtain a commitment for another 30 to be usable on November 4. 20 + 30 = 50; the remaining 30 stay on the agreed balance schedule. The outstanding quantity remains 20 + 30 + 30 = 80.
“Usable” includes the transport, receiving and required inspection or release steps. Those dates remain planning commitments until the steps actually happen. Planning must separately check capacity and other materials before treating the build as covered.
On PO618, line 2, the supplier's record says revision B while the current authorized order requires C. Hold the affected material from production pending authorized quality/engineering disposition. Check which version was sent and acknowledged; the mismatch alone does not establish who caused it.
Record the decision and its closure evidence
The review can produce the following action record. The roles are illustrative; use your company's authority and named people.
| Issue | Owner and decision route | Evidence and completion condition |
|---|---|---|
| PO617: 20 reported dispatched | Logistics/receiving checks the shipment with the supplier | Line-linked dispatch evidence and expected arrival; a separate receipt/release check verifies usable stock |
| PO617: 30 needed earlier | Purchasing obtains the proposal; planning checks it; authorized approver accepts any extra cost | Written quantity/date commitment and approved transport/receiving plan; verify actual release by November 4 |
| PO618: B/C revision mismatch | Quality/engineering decides disposition; purchasing aligns both records with the supplier | Governing specification, approved disposition and acknowledgement before affected material is used |
| Repeated record mismatches | Buyer and supplier assign a corrective-action owner on each side | Agreed cause investigation, action, due date and later effectiveness check |
A confirmed date can close a date-confirmation task. Receipt and material release remain separate actions. Likewise, correcting one revision field does not prove the recurring cause has been fixed.
For a repeated mismatch, agree a later sample of changed orders and the test before calling the action effective: does each supplier acknowledgement match the authorized revision, and does every discrepancy have a recorded disposition? Keep current exceptions under review while that check runs. A passed sample is evidence about that check, not proof that future errors cannot occur.
If the recovery affects a customer commitment, the responsible people must verify the option, approve it and obtain any required customer acceptance. The sales-order change guide covers that separate decision. A supplier's new promise does not authorize an automatic customer promise.
Where Cartograph fits
Open-order reconciliation gathers supplier confirmations and corrections across open lines. Approved date corrections can reach your ERP through the configured integration. Inbox & Tasks keeps the owner, plan, linked records and communication evidence together.
Use that evidence for the review. Your team still decides quality disposition, production feasibility, commercial approvals and customer commitments. A supplier-follow-up workflow is one part of vendor management; qualification, contracting, payment and exit still need their own responsible processes.
Questions teams ask
What is vendor management?
It is the work of selecting, onboarding, working with and reviewing suppliers, then improving or changing the relationship when needed. This guide applies that work to physical-goods suppliers in manufacturing.
Is vendor management the same as SRM?
The terms overlap and publishers use them differently. Define the scope before assigning responsibilities or buying software. Supplier relationships are part of the work; the full process also includes qualification, transactions, performance and transition decisions.
How often should you review a supplier?
Choose a cadence based on criticality, current exceptions and the warning time you need. The weekly review in this example is an operating choice, not a universal rule. Act on an urgent change immediately rather than waiting for the next meeting.
Can a good supplier score close an open issue?
No. A historical delivery percentage does not verify a current shipment, authorize use of a different revision or approve a recovery cost. Close each action against its agreed evidence and keep unresolved conditions visible.