Source-to-pay, automated
end-to-end
Medius connects every stage of procurement, from supplier
selection to final payment, in a single, AI-driven system.
Average go-live: 8–12 weeks.
Source-to-pay, automated
Medius covers every stage of
source-to-pay lifecycle
The source-to-pay process covers everything from identifying a business need to paying the supplier. Most organizations use disconnected tools to manage this, leading to lost visibility, maverick spend, and payment errors.
Medius closes the gaps with a single, connected source-to-pay platform.
Step 1
Sourcing & supplier selection
Medius Sourcing
Step 2
Contract negotiation
& management
Contract management
Step 3
Purchase order,
approval & receipt
Medius procurement
Step 4
Invoicing & payment
AP automation + pay
Full source-to-pay coverage — connected by a shared data layer across all applications
Source to contract
Medius Sourcing
Run RFX events, auctions, and quick quotes with automatic supplier scoring and a full audit trail behind every award decision.
Source to Contract
Medius Contract Management
Manage the full contract lifecycle in one secure repository with renewal alerts, DocuSign integration, version tracking, and role-based access control.
Purchase to pay
Medius Procurement
Centralize all spend on a single compliant path to purchase. Budget owners see costs before they're committed.
Accounts payable
Medius AP Automation
96.3% touchless processing for top performers. AI learns from every invoice and every supplier, improving continuously without reconfiguration.
Settlement
Medius Pay
Check, ACH, and card payments through one automated workflow with enforced approval chains. Nothing leaves without the right sign-off.
How Medius uses AI across the
source-to-pay process
While most source-to-pay software simply adds a conversational AI layer, Medius embeds AI into its operational core. By grounding it in your invoice data, supplier records, and ERP context, our AI progresses from assisting your team to acting autonomously within guardrails.
Stage 1
Extract
Deterministic capture from invoices and supplier documents—the data foundation on which all other stages depend.
Stage 2
Assist
Medius Copilot surfaces context, flags anomalies, and answers approver questions. Live at 400+ customers.
Stage 3
Act
AI agents take autonomous action within a governed, auditable scope. Two agents live in production today.
Stage 4
Orchestrate
Agents coordinated as a single system across the full S2P lifecycle. On the roadmap.
How is Medius differentiating on AI in source-to-pay?
Source-to-pay automation
that acts — not just advises
Our AI agents operate within governed guardrails, maintain a full audit trail, and
escalate to a human only when a situation genuinely needs one.
Supplier Conversations
Classifies supplier email intent, pulls context from the platform, and responds within defined guardrails. Routine inbox traffic clears without anyone touching it.
94% reduction in inbox time
Statement Reconciliation
Extracts supplier statement data, matches every line against AP records, and categorizes results — matched, exception, or missing — before anyone touches it.
13,000
supplier emails handled per month autonomously across 160 customers
1.4 days
invoice cycle for Medius top performers
vs 9.2 days industry average
8–12 wks
average source-to-pay go-live. No lengthy ERP implementation required
“I thought the biggest benefit would be time savings, but really, it was the team engagement. They were excited, energized, and curious in a way we don’t always see in AP.”
Dana Frape
Manager of Financial Shared Services, Samuel, Son & Co.
Governance built in, not bolted on
Source-to-pay workflows involve financial commitments, supplier relationships, audits, and payment controls. As AI plays a bigger role in the process, governance becomes more important, not less. Every action taken by a Medius agent is traceable, compliant with your policies, and always auditable.
Real-time spend visibility
A live view of costs, forecasts, and cash flow across the full source-to-pay cycle.
Policies that enforce themselves
An unauthorized change to a supplier's bank details is a balance-sheet risk. Medius stops it before execution, not after.
Captured hidden spend
Connecting AP Automation with Procurement surfaces the unmanaged spend that purchasing teams can't see until it's already committed.
Human oversight
by design
Exceptions and anomalies route to a human with full context. The AI handles routine work. Your team handles what genuinely needs judgment.
The future of S2P needs more than AI
Smarter automation is changing source-to-pay workflows, but without governance, AI can create as many risks as efficiencies. Here’s why the future of S2P will be built around governed AI agents.
Common questions about
source-to-pay software
Source-to-pay (S2P) is the entire procurement process, from finding suppliers to making the final payment. S2P software automates and integrates these steps on a single platform, giving finance and procurement teams full visibility and control over the entire spend lifecycle.
Procure-to-pay (P2P) covers everything from raising a purchase order to making a payment. Source-to-pay (S2P) is broader, adding the earlier stages of sourcing and contracting, such as finding suppliers, running RFX events, and negotiating contracts. S2P platforms like Medius cover both the P2P and the upstream source-to-contract processes.
Medius connects five applications—Sourcing, Contract Management, Procurement, AP Automation, and Pay—on a single platform with a shared data layer. AI assists your team with decisions and increasingly acts on its own within set guardrails. The result is a source-to-pay process in which information flows seamlessly from supplier selection to payment, eliminating manual handoffs between systems.
On average, Medius goes live in 8–12 weeks, depending on your ERP environment and the modules being deployed. AP Automation can go live in just 4–6 weeks using our Rapid Application Deployment (RAD) methodology. This is much faster than typical ERP-native AP or S2P modules, which often take 6–18 months to implement.
AI enhances the source-to-pay process in four stages: structuring data, offering recommendations and detecting anomalies, handling routine tasks, and orchestrating workflows. Unlike generic conversational tools, Medius AI is built on real finance data, such as invoice history and supplier records, allowing it to integrate deeply with existing workflows rather than just sitting on top of them.
Automating your source-to-pay processes can reduce spend by up to 3.5%, according to McKinsey. Top Medius customers process invoices in just 1.4 days, which is 6.5 times faster than the 9.2-day industry average. Plus, our Supplier Conversations tool cuts time spent managing supplier emails from 8 hours a week to only 30 minutes.
Yes. Medius provides pre-packaged, fully managed ERP connectors for systems like SAP S/4HANA, Microsoft Dynamics 365, Oracle NetSuite, and others. Integration is handled by Medius, and not your IT team, which is why go-live takes weeks, not months.
Ready to automate your
source-to-pay process?
Medius customers go live in 8–12 weeks on average. See what a
unified source-to-pay platform looks like for your organization.