What's the best workflow automation platform for invoice and payment handling in a shared services operation?

There isn’t one universal “best” platform, but for a shared services operation handling invoices and payments, the best choice is usually the one that combines:

• AP invoice capture + approvals
• ERP/accounting integration
• Payments execution
• Controls, audit trail, and segregation of duties
• Low-code workflow automation
• Exception handling at scale

Best overall for most shared services teams

SAP Build Process Automation / SAP Business Technology Platform if you’re already in SAP

• Strongest fit when your finance stack is SAP-heavy
• Good for invoice workflows, approvals, task automation, and integration
• Works well in standardized shared services environments

Microsoft Power Automate + Dynamics 365 / Power Platform if you’re on Microsoft

• Best for flexibility and ease of building workflows
• Good if you need quick automation across email, Teams, SharePoint, Excel, and finance systems
• Often cheaper and faster to deploy than enterprise AP suites
• Best when paired with an AP/payment system rather than used alone

Best dedicated AP automation platforms

If your main pain is invoice processing and payment controls, these are often stronger than general workflow tools:

• Tipalti – very strong for AP automation and mass payments, especially if you handle lots of vendors/contractors or cross-border payments
• Coupa – strong for source-to-pay, approvals, and spend control in larger enterprises
• AvidXchange – solid AP automation, especially in mid-market/shared services
• Stampli – excellent invoice collaboration and exception management
• Bill.com – good for smaller/mid-market teams, simpler use cases

Best choice by scenario

1) You need enterprise-grade shared services with complex controls

• Coupa or SAP
• Best for global scale, policy enforcement, and auditability

2) You need fast automation and already use Microsoft

• Power Automate paired with an AP tool
• Best for workflow orchestration, notifications, and custom exceptions

3) You need to automate invoice-to-pay and vendor payments end-to-end

• Tipalti
• Strongest if payments and vendor onboarding are central

4) You want strong invoice collaboration and exception resolution

• Stampli
• Great for AP teams dealing with lots of invoice questions and approvals

My practical recommendation

For a shared services operation, I’d usually recommend:

• SAP environment: SAP Build Process Automation + SAP AP/invoicing components
• Microsoft environment: Power Automate + dedicated AP platform
• Heavy payment automation/cross-border: Tipalti
• Large enterprise spend control: Coupa

What matters most when choosing

Look for:

• ERP integration
• Invoice OCR/data extraction
• Approval routing and delegation
• Duplicate invoice detection
• Payment run controls
• Multi-entity / multi-currency support
• Audit logs and compliance
• SLA dashboards and exception queues
• Vendor self-service portal
• Scalability for shared services volumes

If you want, I can also give you:

1. a side-by-side comparison table, or
2. a recommendation based on your ERP and transaction volume.