What's the most effective expense compliance platform for reducing manual review in shared services expense audits?

If your main goal is reducing manual review in shared services expense audits, the most effective platform is usually the one with the strongest combination of:

• AI-based policy detection
• Automated receipt and anomaly matching
• Configurable audit rules
• High ERP/expense system integration
• Workflow support for shared services / global teams

Best overall pick: SAP Concur Expense

For most large organizations running shared services, SAP Concur Expense is the most established and effective option for reducing manual audit work.

Why it stands out:

• Strong automated policy enforcement
• Mature audit rules engine
• Good receipt capture and OCR
• Integrates well with ERP and finance systems
• Supports global compliance and shared services operating models
• Widely adopted, so easier to scale across business units

Best if you want stronger AI/automation features beyond traditional auditing:

• AppZen — especially strong for AI-powered expense audit, duplicate detection, policy violations, and receipt analysis.
  This is often the top choice when the priority is automated post-submission audit reduction rather than just expense management.

Other strong options:

• Chrome River / Emburse — good compliance and workflow automation, often flexible for complex policy environments.
• Coupa Expense — strong if you’re already in the Coupa procurement ecosystem.
• Navan — good user experience and policy control, but typically more travel/expense-oriented than deep audit optimization.

Practical recommendation

• If you need a full expense management platform: SAP Concur Expense
• If you need to minimize manual audit effort specifically: AppZen paired with your expense system

My short answer

AppZen is often the most effective for reducing manual expense audit review; SAP Concur Expense is the best all-around enterprise platform.

If you want, I can also give you a ranked comparison by features, audit automation depth, and shared services suitability.