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Supplier Audit

supplier audit

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Supplier Quality Audit

In today’s globalized market, organizations work with suppliers from around the world. However, ensuring that suppliers meet all the quality standards set by your company can be challenging. This is where supplier quality audits play a critical role. Supplier quality audits help businesses address these challenges by providing insight into whether a supplier’s products, services, and processes consistently adhere to defined quality standards, making them an essential part of any manufacturer’s quality management practices.

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What is a Supplier Audit?

A supplier audit is performed by businesses to ensure that the external supplier meets the organization’s quality standards. In a supplier audit, the supplier auditor inspects whether the supplier is adhering to industry regulatory practices, such as health and safety measures and correct manufacturing processes. There are various types of supplier audits to ensure Quality Assurance is consistent. The most common types of supplier audits are system audits, compliance audits, process audits, and product audits, all of which support effective auditing suppliers across the supply chain.

what is supplier audit
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What is the need for a Supplier Audit?

Having better visibility into a supplier’s processes and Quality Management System (QMS) allows manufacturers to avoid the risk of products that do not meet business quality standards. Supplier audits are a key part of structured supplier audit management and are often included in the quality team’s due diligence or annual review activities. Supplier auditing will enable businesses to evaluate a supplier’s products and processes based on the defined quality standards at the time of onboarding. Supplier audits are also usually requested when

  • the supplier is new, and there isn’t enough performance information
  • the supplier is critical to supply chain reliability and the organization

Who is Responsible for Supplier Audit?

Typically, a supplier audit process is initiated by an internal team of the buyer organization. The person leading the supplier audit is usually a qualified supplier auditor from the procurement or quality department. Once the audit date is set, the internal audit team creates a checklist of items or information that must be collected from suppliers. Based on this scope, the organization decides whether auditing suppliers should be conducted in-house or by an external audit partner.

responsible for supplier audit

Reimagining Supplier Qualification & Onboarding: A 6-step approach

Types of Supplier Audit

  • Announced Supplier Audits are conducted with prior notice for inspection. This type of audit gives the supplier enough time to prepare. While this type of audit is effective, the supplier will have a chance to improve their processes at the last minute.
  • In unannounced supplier audits, the audit visits the site of inspection unannounced. It is one of the trending inspection methods in recent times, and the auditor can look at the operations and practices without any signs of tampering.
  • Desktop supplier audits are not conducted in person, as the primary purpose of this audit is to verify if the supplier’s documentation and certificates are up to date. These are done online without the need for personal site visits.

supplier audit types

Benefits of Supplier Audit

Some of the benefits of implementing a supplier audit are:

  • Supplier audits review onboarding and performance processes, helping identify gaps, risks, and improvement areas while strengthening supplier audit management.

  • To maintain customer satisfaction, it is essential to keep the quality standards of the product. A supplier audit helps ensure the suppliers follow the quality standards and maintain Quality Control.

  • Helps improve and maintain communication with suppliers as regular audits ensure quality objectives are consistently met and enhanced to meet the organization’s ever-changing needs.

supplier audits

Supplier Audits: Avoiding Critical Risks when Managing Raw Material Suppliers

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What are the points should be considered in a Supplier Audit?

A supplier quality audit, when conducted successfully, will help a business identify, remedy, and prevent problems in a supplier’s product quality or processes. The audit also helps from the quality issue creating major problems while ensuring quality consistency. Before performing a supplier audit, consider the following points.

supplier audit points

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Conduct pre-audit research before reaching the audit site

In this step, it is important to understand the parties’ expectations. Similarly, the audit committee must prepare a prioritized checklist of items to review along with a list of products or services supplied. Other pre-audit research items include a review of:

  • past audit reports
  • supplier history with the company
  • existing product specifications
  • product performance
  • interviews with in-house personnel about the supplier and the product
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Do thorough research on the supplier's reputation online

Leverage online research, regulatory databases, and compliance history to investigate the supplier. Review the supplier’s website and digital channels, read feedback from Consumer Reports and the Better Business Bureau, and search FDA records for CGMP compliance information or warning letters—insights that support effective, risk-based supplier audit management.

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Investigate customer complaints

Customer complaints are a source of information about the performance and quality of products. To that end, looking into each complaint with a fine toothcomb is important. If there is repetitiveness in the type of complaint, understand the root cause for the same. This helps understand if the supplier is at fault, and this information can become part of the supplier audit process for further investigation.

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Know your supplier's activity

If a part of the products your business procures comes from your supplier’s supplier, it is mandatory to be notified of the fact. Their relationship also impacts the quality of your products; hence, all parties involved with the company must adhere to the supplier quality agreements. Request your immediate supplier to furnish an audit report or any other documentation that validates their claim to meet your quality standards. This process is paramount to the overall quality output of your business.

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Ensure Supplier Quality Audits Stay on Track

During a supplier quality audit, it is essential to actively review processes and documents while listening carefully to the supplier. The supplier’s responsibility is to follow established protocols and provide the auditor with full access to all quality-related records and processes. If the supplier or their team provides incomplete or evasive responses, this should be documented in the supplier quality audit report, as it may indicate issues such as deviations, non-conformances, or failed lots.

Great product, support, and people to work with!

We have rolled-out CQ across our company to automate various elements of QMS requirements such as Document Management, Complaints, Non-conformances, Corrective Action (8D and A3), Supplier Management and Audit Management. We have been using the software for more than 2 years. We are glad to see how well the system is being used across the company. We have several thousand users on the system currently and working to scale the usage further. CQ solution has been configured to meet our needs, works elegantly across languages, across time zones, and business verticals. With integration between CQ and SAP to exchange critical data, the process automation provides a lot of productivity.

Lia Budiman,
Solution Consultant, Continental Contitech

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continental contitech logo

Quality-centric Companies Rely on CQ QMS

  • Flex
  • continental
  • 3m logo
  • YKK
  • Qorvo
  • Canon
  • Stryker
  • Lam Research
  • Just Evotech
  • Tilray

Evaluate supplier’s products and processes to meet quality standards with ComplianceQuest’s Supplier Audit

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Frequently Asked Questions

  • A neutral third-party inspection company conducts external supplier audits by assessing the supplier’s compliance based on specific quality standards and business requirements. To ensure that the supplier quality standards are met consistently, it is recommended that supplier audits are conducted every two years.

  • ComplianceQuest EQMS includes a dedicated portal called Supplier Central, designed to support organizations in managing supplier quality audits effectively. Quality and supply chain leaders can:

    • rack all supplier-related data in real-time to prepare for audits

    • Submit requests to suppliers, contract manufacturers, dealers, or partners for audit-related information

    • Respond to supply chain issues with agility during supplier quality audits

    • Gain end-to-end visibility of any supplier’s quality performance

    • Communicate and collaborate with key stakeholders to address audit findings

    By centralizing supplier data, companies can ensure a smoother, more efficient supplier quality audit process.

  • The ComplianceQuest Supplier Management solution provides the Supplier Readiness app, which helps auditors capture all supplier-related information in a structured way. Auditors can:

    • Use a customizable auditing checklist tool tailored for supplier quality audits

    • Adjust the checklist based on the risk levels of each supplier

    • Collect evidence and document findings in real time for compliance verification

    • Streamline audit execution, reporting, and follow-up actions


    This ensures that supplier quality audits are consistent, thorough, and fully aligned with organizational quality standards.

  • To centralize supplier quality and audit management, the most effective approach is to consolidate all supplier data, audits, certifications, nonconformances, and CAPAs into one cloud-based platform.

    A solution like ComplianceQuestprovides a unified Supplier Quality Management and Audit module, eliminating fragmented spreadsheets and manual tracking. Standardized checklists, automated scheduling, escalations, and digital CAPA workflows ensure consistent, risk-based supplier evaluations. Real-time dashboards track performance trends, closure rates, and recurring issues, improving visibility and accountability. Supplier portals streamline collaboration, document exchange, and corrective actions.

    With centralized workflows, organizations gain stronger oversight, faster response cycles, continuous improvement, and better long-term supply chain reliability.

  • ComplianceQuest automates supplier audit scheduling, findings, and corrective actions. Issues are routed to suppliers, tracked to closure, and linked to CAPA, ensuring accountability and continuous improvement.

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