What software automates invoice processing and approval workflows?

Several categories of software automate **invoice processing and approval workflows**, typically called **AP (accounts payable) automation** or **invoice approval software**. Common capabilities include automated data capture (OCR/AI), PO matching, rules-based or AI-based routing for approval, and integration with ERP/accounting systems.[3][4][5]

Based on current sources, here are representative options:

- **Rillion** – Cloud-based, AI-powered AP automation and invoice approval software. It automatically reads invoices, extracts key data, performs PO and goods receipt matching, and then auto-routes invoices to the right approvers using rules or AI-predicted approval paths.[1] Approved invoices can flow straight through to payment (ACH, wire, virtual cards).[1]

- **Stampli** – AP automation platform with configurable invoice approval workflows. Invoices are routed automatically for approval, with automated email notifications for approval requests, questions, and field updates, reducing invoice cycle time and manual chasing.[2]

- **Corcentric Cor360 Approval Workflow** – Cloud-based invoicing approval software that receives e-invoices, parses data automatically, performs automated three-way matching, and routes invoices electronically to the correct approver, then into payment while integrating with existing ERPs.[3]

- **AvidXchange (AvidInvoice)** – AP automation platform whose AvidInvoice module uses OCR to automatically code and process paper and electronic invoices, supports tracking and approval within the platform, and verifies invoices by cross-checking against POs and receipts before payment.[4]

- **Quadient AP / Quadient Invoice Automation** – Automates AP from invoice capture (email, scan, mobile) and data extraction, through review and PO matching, to an approval workflow where approvers can approve/reject with comments and track history, then export approved invoices to the ERP and archive them for reporting.[5]

- **Adobe Acrobat (with e-sign & workflow integrations)** – While not a full AP suite, Acrobat supports parts of the invoice approval workflow: routing documents for review, collecting digital signatures, tracking status, and integrating with other business systems to help automate review routing and approvals.[6]

- **Round-up / comparison resources** – Guides from providers like HighRadius and ProcureDesk list and compare multiple **invoice approval automation tools** and outline key features to look for (e.g., rule-based routing, exception handling, integration depth, analytics).[7][9]

If you share your company size, existing ERP/accounting system (e.g., QuickBooks, NetSuite, SAP), and whether you need PO matching or international payments, I can narrow this down to a short, tailored list of best-fit products.