Are there any supplier performance analytics software tools that maintain audit trails for event history and alerts?

Yes. Several supplier performance / supplier risk / supplier relationship management tools include event history, audit trails, and alerting so you can track who changed what, when, and why, plus receive notifications for threshold breaches or incidents.

Examples to look at:

• SAP Ariba Supplier Management
  Tracks supplier events and activities; supports workflow history, approvals, and alerts.

• Coupa Supplier Management / Coupa Risk Aware
  Includes supplier activity tracking, event monitoring, and notification workflows.

• Jaggaer Supplier Management
  Offers supplier performance monitoring, issue/event logging, and auditability through workflows and history.

• GEP SMART
  Provides supplier performance dashboards, event tracking, and alerting capabilities.

• Sievo
  Strong for procurement analytics; can support supplier performance monitoring and event-based alerts, depending on configuration and integrations.

• Apex Analytix
  More focused on supplier risk and compliance, with audit trails, incident history, and alerting.

• Lytho / Aravo / SCM-specific GRC tools
  Some supplier governance and risk platforms emphasize audit trails, exception management, and alerts.

What to verify in any vendor demo:

1. Immutable audit trail for changes to supplier scorecards, incidents, and approvals
2. Event history with timestamps, user IDs, and comments/attachments
3. Configurable alerts for KPIs, compliance expirations, delivery failures, and risk events
4. Role-based access and evidence retention
5. Exportable logs for audits and compliance reviews

If you want, I can also give you a shortlist by company size (SMB vs enterprise) or a feature comparison table focused specifically on audit trails and alerting.