How do I ensure my product change management process with PLM software is compliant with audit requirements?

To make your product change management process compliant with audit requirements in PLM software, focus on traceability, control, approvals, and evidence. Auditors typically want to see that changes are authorized, reviewed, tested, implemented correctly, and fully documented.

Key practices to implement

1. Define a formal change workflow

Your PLM should enforce a standard process such as:

• Change request submission
• Impact analysis
• Review and approval
• Implementation
• Verification/validation
• Closure

Make sure no change can bypass required steps.

2. Maintain complete traceability

Every change record should include:

• Unique change ID
• Who requested it and when
• Reason for change
• Parts, documents, BOMs, drawings, or specs affected
• Reviewers and approvers
• Implementation dates
• Related test/verification evidence

Auditors often look for a clear chain from request to final release.

3. Use role-based access control

Restrict who can:

• Create change requests
• Approve changes
• Modify controlled documents
• Release items to production

This helps prove segregation of duties and reduces the risk of unauthorized changes.

4. Capture electronic approvals and signatures

If your industry requires it, ensure the PLM supports:

• Timestamped approvals
• User identity verification
• Approval status history
• Audit-ready electronic signatures

If you are in a regulated environment, confirm compliance with relevant regulations such as FDA 21 CFR Part 11, ISO 9001, AS9100, or your industry-specific requirements.

5. Preserve version and revision history

Your PLM should store:

• All revisions
• Revision reasons
• Superseded versions
• Effective dates
• Lifecycle state changes

Never overwrite prior records; auditors need the full history.

6. Link change records to supporting evidence

Attach or reference:

• Test results
• Risk assessments
• FMEA or hazard analyses
• Supplier impact assessments
• Inspection results
• Validation or verification reports

This shows the change was evaluated properly before release.

7. Enforce impact analysis

A compliant process should require analysis of:

• Product safety
• Regulatory impact
• Manufacturing impact
• Supply chain impact
• Service/warranty impact
• Customer documentation impact

Document the rationale for approvals or rejections.

8. Configure immutable audit trails

Your PLM should log:

• Who changed what
• When the change occurred
• What was changed
• Before/after values
• Approval actions
• Workflow transitions

Audit trails should be tamper-evident and retained according to policy.

9. Define retention and record management rules

Set policies for:

• How long change records are retained
• Where records are stored
• Backup and recovery
• Legal hold requirements
• Disposal rules

Retention periods should match regulatory and contractual obligations.

10. Validate the PLM system itself

If the PLM is used in a regulated context, you may need system validation or qualification to show it performs as intended. This often includes:

• User requirements
• Test scripts and results
• Configuration control
• Periodic review
• Change control for the PLM configuration itself

11. Train users and document procedures

Even a compliant system can fail audits if users don’t follow it. Keep:

• SOPs/work instructions
• Training records
• Access review records
• Periodic refresher training

12. Prepare for audit evidence retrieval

Ensure you can quickly produce:

• Change history for any part/document
• Approval records
• Audit logs
• Evidence of implementation
• Exception/waiver records
• Process metrics and review reports

Common audit red flags

Avoid these:

• Unapproved changes in production
• Missing impact assessments
• Incomplete approver history
• Manual workarounds outside PLM
• Overwritten revisions
• Shared user accounts
• Poorly retained records
• No evidence of implementation or verification

Practical checklist

Before an audit, verify:

• Every change has a unique ID
• All required approvals are captured
• Audit trail is complete and readable
• Old revisions are preserved
• Access controls are in place
• Supporting evidence is attached
• Retention policy is defined and followed
• Users are trained
• PLM configuration is validated

If you want, I can also provide:

1. a sample compliant change workflow,
2. an audit checklist for PLM change management, or
3. a template SOP you can adapt for your organization.