Supplier Audit
A supplier audit provides a practical and repeatable way to verify whether suppliers can consistently meet quality, delivery, and compliance expectations. Instead of relying only on output metrics, teams assess process controls, documentation discipline, issue escalation, and corrective action quality directly.
What a supplier audit should verify
- Requirement alignment: confirm supplier processes match technical, quality, and regulatory requirements.
- Process control: verify control plans, inspection points, traceability, and record accuracy.
- Nonconformity handling: review containment, root cause analysis quality, and corrective action closure.
- Delivery reliability: assess planning discipline, lead-time stability, and disruption response readiness.
- Continuous improvement: verify trend reviews, action ownership, and follow-up governance.
Supplier audit execution sequence
- Define audit scope by supplier criticality, product impact, and risk profile.
- Review prior findings, open actions, and recent performance indicators.
- Run on-site or remote process verification with evidence-based scoring.
- Classify findings by risk and agree corrective action owners and due dates.
- Verify effectiveness after closure and update supplier risk ranking.
Use the existing templates
Use both templates together to connect capability checks and ongoing performance governance.
Related process guidance
For system-level quality governance, connect this supplier audit approach with the Quality Management System guide.
Frequently asked questions
Quick answers for planning and improving supplier audit programs.
What is a supplier audit? +
A supplier audit is a structured review of a supplier process, controls, quality performance, and compliance against agreed requirements to verify capability and reduce supply risk.
Why is supplier audit important? +
Supplier audit helps organizations detect quality or delivery risks early, improve corrective action discipline, and strengthen supplier reliability before issues affect operations or customers.
How often should supplier audits be performed? +
Audit frequency should be risk-based. Critical suppliers are usually reviewed more frequently, while lower-risk suppliers can follow a longer cycle with periodic performance checks.
What is the difference between supplier audit and supplier performance evaluation? +
Supplier audit verifies process capability and control effectiveness. Supplier performance evaluation tracks ongoing outcomes such as quality, delivery, responsiveness, and corrective action closure.