Icologiq Knowledge · Process
Supplier Audit
A structured evaluation of a supplier's processes, controls and evidence against defined quality, regulatory or contractual requirements.
Also known as:
vendor audit, supplier quality audit, supplier assessment audit
At a glance
Type
Process
Topic
Supplier Quality
Applies to
Food & Agriculture, MedTech & Medical Devices
Current version
Status
Last reviewed
September 29, 2026
Definition
A supplier audit is a structured evaluation of a supplier's management system, processes, controls and evidence against defined quality, regulatory, technical or contractual requirements. Supplier audits may support initial qualification, risk-based oversight, re-evaluation or investigation of performance concerns. They are one control within a wider supplier-quality process rather than a substitute for ongoing performance monitoring.
Why it matters
For regulated organizations, supplier failures can become product, safety or compliance failures. Quality teams need supplier-audit findings, actions and evidence to connect with qualification status, supplier performance, nonconformances and CAPA. Managing those relationships in one controlled process makes it easier to show why a supplier remains approved and whether agreed improvements were actually completed.
Connect the audit to supplier qualification, performance concerns, change, criticality or contractual requirements so the scope is proportionate.
Define the audit purpose
1
Identify the sites, processes, products and requirements that will be examined and communicate practical expectations to the supplier.
Set Audit Scope and criteria
2
Select competent auditors, review supplier history and build the Audit Plan and evidence priorities.
Prepare the audit
3
Use interviews, records, observation and sampling to determine how effectively the supplier meets the defined requirements.
Evaluate evidence on site or remotely
4
Document evidence-based findings clearly enough for both parties to understand the issue, requirement and expected response.
Record and communicate findings
5
Track agreed correction or Corrective Action and use the result to update qualification, supplier risk or ongoing monitoring.
Follow actions to closure
6
Process explained
Using supplier audits to verify control
Supplier Audits are most useful when they are linked to supplier risk, clear Audit Criteria and actionable follow-up. The audit should complement rather than replace qualification data, performance monitoring and ongoing Supplier Quality Management.
The systematic qualification, monitoring and improvement of suppliers to ensure purchased products and services consistently meet defined quality and compliance requirements.
Supplier Quality Management
Process
· Supplier Quality
A risk-based process for evaluating and approving a supplier's ability to consistently meet defined quality, technical and regulatory requirements.
Supplier Qualification
Process
· Supplier Quality
The coordinated planning, execution, reporting and follow-up of audits within a structured and traceable process.
Audit Management
Process
· Audit
A structured process for addressing causes of actual or potential problems through corrective or preventive measures and verifying that actions are effective.
CAPA
Process
· CAPA & Incidents
The international quality management system standard specifying regulatory-focused requirements for organizations involved in the design, manufacture and lifecycle of medical devices.
ISO 13485
Standard
· MedTech
An audit conducted by a party outside the organization being audited, including second-party and independent third-party audits.
External Audit
Process
· Audit
An external audit conducted by a party with an interest in the organization, such as a customer, or by someone acting on that party's behalf.
Second-Party Audit
Process
· Audit
Records, statements of fact or other verifiable information that is relevant to the audit criteria and supports audit evaluation.
Audit Evidence
Concept
· Audit
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