--- title: "Rex | The AI operations partner for order-to-cash" description: "AI that executes finance work. Fully auditable." canonical: https://www.rex.inc/ last-updated: 2026-08-21 --- # Rex | The AI operations partner for order-to-cash AI that executes finance work. Fully auditable. ## The AI operations partner for order-to-cash Rex agents operate on top of your finance stack and run your AR processes – with decision traces and guardrails. No migration required. [See how it works](https://cal.com/merlin-kafka-8tiggc/book-a-demo-with-rex) | [Learn more](mailto:hello@rex.inc) --- ### Key metrics | Metric | Value | |--------|-------| | Average DSO reduction | **12 days** | | Hours back per operator | **20h / week** | | Roll out | **< 2 weeks** | --- ## Why Rex > "We knew exactly what would improve cash. Rex actually does the work. And we can see every action it takes." > > *FT500 CFO* ### With Rex, impossible work is now routine - Enforce payment terms across your entire customer base - Surface early-payment discounts that were never claimed - Stay on top of your entire aging book – every day - Renegotiate terms across thousands of customers in days --- ## How Rex helps enterprise AR teams ### The problem isn’t strategy. It’s capacity. CFOs know what would improve cash: tighter terms, faster collections, enforced contracts. Rex handles the long tail no one has time for. ### AI that does the work, not just surfaces it Rex handles execution end-to-end. Uploading invoices, sending follow-ups, validating POs. Your team steps in when judgment is required. ### Deploy in days, not quarters No migration, consultants, or rip and replace. Rex connects directly to your existing systems. Go live in days, see DSO improve in weeks. --- ## Rex in action Rex does the work. Your team handles exceptions. ### Agents handle uploads to 40+ supplier portals Handle Coupa, Ariba, Bill.com, and any custom portals. Rex logs in, uploads, validates, submits. Your team approves exceptions. ### Uncover hidden revenue in your receivables Run a multi-month contract audit in minutes. Take action on pricing discrepancies, uncollected fees, and billing errors across thousands of customers. ### Adapt collections to how each customer pays Understand actual payment patterns, not contract terms. Personalize timing and tone. Escalate with context. Handle the long tail while teams focus on strategic accounts. ### Know when cash will land. For every invoice. Forecast payment dates based on customer behavior, not contract terms. Trigger proactive collections when delays are predicted. --- ## Runs on your existing finance stack Integrations include: - Oracle NetSuite - SAP - Microsoft Dynamics - Workday - Oracle Fusion --- ## Built for trust and security Enterprise-grade from day zero. - SOC2 Type I and ISO27001 compliant (monitoring) - Role-based access control and audit logs - AES-256 encrypted --- ## AI for industry We partner with finance teams across the industrial economy. - CPG - Manufacturing - SaaS & AI - Retail - Logistics - Distribution --- ## Frequently asked questions **What is Rex?** Rex is an AI operations partner for order-to-cash. Rex agents run accounts receivable workflows for enterprise finance teams, including collections, invoice portal uploads, cash application, payment reconciliation, and AR inbox management. Rex connects to the systems you already use, including your ERP, CRM, email, and Microsoft Teams. **Who is Rex for?** Rex is built for enterprise finance and accounts receivable teams with resource-intensive order-to-cash operations. That typically means large customer bases, multiple systems, high transaction volumes, and manual work across collections, cash application, billing, disputes, and customer portals. **How is Rex different from accounts receivable software?** Most accounts receivable software helps teams organize, prioritize, or automate parts of the AR process. Rex is designed to do the underlying work. Rex agents can follow up with customers, upload invoices to supplier portals, reconcile payments, process remittances, update systems, and handle routine requests. Your team stays in control of exceptions, approvals, and higher-risk decisions. **Does Rex replace my ERP or existing AR systems?** No. Rex works with your existing finance stack rather than replacing it. Rex connects to ERP, CRM, email, collaboration tools, customer portals, and existing AR systems, then operates workflows across them. There is no ERP migration or rip-and-replace project. **How long does Rex take to implement?** Most teams can go live with Rex in under two weeks. Rex connects to your existing systems and learns the procedures your team already follows. There is no data migration or lengthy software implementation required. **How is Rex priced?** Rex is priced around outcomes, not seats. Pricing reflects the scope and volume of finance operations Rex takes on, and is benchmarked against the cost of running those processes with internal teams, shared service centers, or BPO providers rather than traditional software licenses. **What ROI can I expect from Rex?** Rex improves accounts receivable performance in two ways: it reduces the manual work required to run AR and helps invoices turn into cash faster. Customers typically see DSO improve by around 12 days and save more than 20 hours of manual work per AR operator each week. Results can begin within weeks of deployment. **How does Rex handle complex accounts receivable scenarios?** Rex follows your procedures, policies, approval rules, and authority limits. Every action is recorded with a full audit trail. When a case requires human judgment or falls outside its authority, Rex escalates it to the right person with the relevant customer, invoice, payment, and communication context already assembled. --- ## Contact - [Contact page](https://www.rex.inc/contact) - Email: [hello@rex.inc](mailto:hello@rex.inc) - [Privacy Policy](https://www.rex.inc/privacy-policy) - [Terms of service](https://www.rex.inc/terms-of-service) © Rex.inc 2026 All Rights Reserved.