SAP P2P process: How to automate procurement and invoicing

Your SAP P2P process runs through requisition, purchasing, goods receipt, invoice processing, and payment, and every one of those steps depends on procurement, logistics, and finance staying in sync. When they don't, invoices stall, approvals get chased over email, and your team spends hours on work SAP was never built to automate on its own.

According to the Institute of Financial Operations & Leadership (2025), 63% of accounts payable teams spend more than 10 hours a week processing invoices, and 66% still enter invoice data manually into their ERP system.

Doxis Procure-to-Pay for SAP closes that gap. It combines document management, workflow automation, and AI-powered document processing into a single layer on top of SAP ERP and SAP S/4HANA, so your P2P process runs end to end without switching systems.

Key takeaways

• The SAP P2P process covers the full procurement lifecycle, from purchase requisition to payment
• Manual data entry, disconnected systems, and limited visibility slow down most P2P processes in SAP
• An enterprise content management (ECM) system connects documents, workflows, and SAP data in one business context
• Doxis automates your P2P process in SAP with AI, digital workflows, and SAP-integrated document management
• Order confirmations, delivery notes, and invoices are captured, validated, and processed automatically
• Documents are archived in an audit-proof way directly inside the process, with no system switching
• You get shorter processing times, less manual effort, and stronger compliance across procurement

What is a SAP P2P process?

A P2P (purchase-to-pay) process in SAP manages your procurement lifecycle from identifying a purchasing need through paying the supplier. It runs across requisition, purchase order, goods receipt, invoice matching, and payment, giving you one workflow for standardizing procurement, controlling spend, and staying compliant at every stage.

A typical P2P process in SAP includes:

1. Identify a purchasing need: A business unit submits a request for goods or services
2. Approve the purchase request: Stakeholders review and approve based on policy and budget
3. Create and send the purchase order: Procurement generates the PO and sends it to the supplier
4. Record the goods receipt: Delivered goods or completed services are verified and recorded
5. Process the supplier invoice: The invoice is matched against the PO and goods receipt before approval
6. Execute the payment: Once approved, the invoice is posted and paid per agreed terms

Why SAP alone isn't enough for P2P automation

SAP handles the transactional backbone of your P2P process reliably. Where it runs short is everywhere work has to happen outside that core system, and those gaps cascade into each other fast.

The document gap

An invoice might land by email. A delivery note by paper. An order confirmation through a supplier portal, or an EDI feed, or nothing formal at all. Someone on your team keys that data in by hand, or bounces between several applications just to process one transaction.

That's not just slow. It's where errors get introduced, and where a backlog builds that eventually shows up as late payments, missed discounts, or an AP team working weekends to catch up.

The visibility gap

Procurement sits in SAP. So does logistics. So does finance. But the correspondence and exceptions around any given transaction live somewhere else entirely. You can see the purchase order. Finding out who's sitting on an approval, or reconstructing what happened when a supplier disputes a delivery, means digging through inboxes SAP can't see into.

Then comes audit time

If your procurement documents sit archived somewhere disconnected from SAP, proving what happened and when takes hours instead of a click, right when you can least afford the delay.

Standard SAP workflows weren't built to classify a scanned delivery note or route an invoice that doesn't match an expected format, either. Those exceptions land on someone's desk instead of resolving themselves.

Doxis Procure-to-Pay for SAP closes that gap from inside the SAP process itself, instead of bolting automation on beside it.

Achieve true end-to-end P2P with ECM

Your P2P process generates purchase requisitions, purchase orders, order confirmations, delivery notes, invoices, and contracts. Without centralized document management, all of that scatters across systems, and your process consistency scatters right along with it.

An ECM system connects these documents directly to their corresponding SAP transactions. The right information ends up in the right business context, at the step where you actually need it, not three systems away.

Bring documents, SAP data, workflows, and audit-proof archiving together on one platform, and a set of connected steps becomes an actual end-to-end P2P process, with real transparency and less manual effort at every stage.

How to automate your P2P process in SAP with Doxis

Doxis extends SAP with intelligent document processing, workflow automation, and audit-proof archiving, bringing documents, SAP data, and business processes together on one platform. As an SAP-certified partner, Doxis integrates with SAP ERP and SAP S/4HANA through certified interfaces and add-ons. Here's how it supports each stage of your P2P process.

Module 1: Doxis Purchase

Step 1: Capture purchase requests digitally

Your employees submit purchase requisitions in SAP through the Doxis Purchase interface. It works much like an online shopping experience: pick what you need, set a delivery date, attach the quote. Doxis turns that into a structured requisition automatically, so requests arrive whole instead of bouncing back for clarification three times.

Step 2: Review purchase requisitions with AI

Approvers see incoming requisitions inside the SAP context, with every related document and piece of metadata already attached in the Doxis Purchase Center. Built-in AI flags what's missing or inconsistent before anyone signs off. Fewer requests come back for rework later.

Step 3: Automate approval workflows

Doxis routes requisitions automatically based on your business rules. Substitute approvers, escalation paths, mobile sign-off for people without direct SAP access, it all runs without someone chasing an email chain. You can see exactly who decided what, and when.

Step 4: Monitor purchase requisitions centrally

The Purchase Monitor gives your procurement team real-time visibility into open, approved, and critical requests. Bottlenecks show up before they become a supplier's problem, and purchase orders get created automatically or by hand, whichever the situation calls for.

Module 2: Doxis ProcureDocs

Step 5: Send purchase orders directly from SAP

Once approved, SAP generates the purchase order. Doxis attaches the supporting documents, quotations, technical specs, whatever the supplier needs, and sends everything straight from SAP to the right contact. Purchase orders go out with nothing typed twice.

Step 6: Track purchase orders in real time

The ProcureDocs Monitor tracks every purchase order's status: sent, confirmed, still in progress. Delays surface before they turn into a missed delivery date your team finds out about too late.

Module 3: Doxis Confirmation

Step 7: Manage order confirmations centrally

Doxis captures incoming order confirmations in the Confirmation Monitor and links them to the matching SAP purchase order automatically. You know which orders are confirmed and where the numbers don't line up, without emailing anyone to ask.

Step 8: Validate and reconcile order confirmations with AI

AI extracts the data from each confirmation and checks price, quantity, and delivery date against the purchase order. A match moves straight to the next workflow step. A mismatch launches a clarification workflow before it ever reaches goods receipt or invoicing.

Module 4: Doxis Delivery

Step 9: Capture goods receipts digitally and link delivery notes

Your warehouse staff scan delivery notes at goods receipt with a barcode scanner or handheld device. The data lands in SAP and links to the right goods receipt transaction. Once it's posted, everyone downstream in the P2P process can see it.

Module 5: Doxis Invoice

Step 10: Capture and validate supplier invoices automatically

Doxis Invoice processes incoming invoices in any format, email, EDI, paper, e-invoice, and extracts the data with AI. It matches that against the purchase order and goods receipt in SAP. A match goes straight to touchless posting. A mismatch routes into an exception workflow before it costs you an early payment discount.

Step 11: Approve and process invoices digitally

Doxis automates invoice approval based on rules like invoice value, cost center, or supplier. Approvers sign off in SAP or remotely from web and mobile. Once approved, Doxis transfers the invoice for posting and payment, and logs every step against the SAP business document, so an audit doesn't turn into a search through someone's inbox.

Bonus: Doxis Archive

Doxis Archive stores every document your P2P process generates in a secure, audit-proof archive: requisitions, orders, delivery notes, invoices, SAP accounting documents. Each one stays linked to its SAP transaction and opens in a click from inside SAP.

It's included at no extra cost with any Doxis SAP product. Audit-proof archiving isn't a separate line item you need to fight for budget on.

Automate your P2P process in SAP with Doxis

A P2P process doesn't end when a purchase order goes out or an invoice gets processed. True end-to-end efficiency happens when documents, approvals, and SAP business processes work together, without manual handoffs or disconnected workflows breaking the chain.

Doxis extends SAP with intelligent document management, workflow automation, AI-powered document processing, and audit-proof archiving, so you can digitize your entire P2P process from purchase requisition through compliant archiving.

The result: shorter processing times, less manual work, and better control over compliance and procurement costs.

See it work with your own SAP setup. Book a walkthrough of your P2P process running on Doxis, no commitment, just your procurement data and our platform side by side.

Here's what you get:

• Purchase requisitions, orders, and invoices processed automatically, matched, and routed without manual re-entry
• Direct integration with SAP ERP and SAP S/4HANA through certified interfaces
• Audit-proof archiving included with every Doxis SAP product, at no extra cost
• Full visibility into every open requisition, order, and invoice from a single monitor
• AI-powered validation that catches discrepancies before they reach approval

Doxis is a Leader in the Gartner® Magic Quadrant™ for Document Management 2026. According to a Forrester Total Economic Impact™ study, organizations using Doxis achieved a 336% return on investment with payback in under six months.

Book your demo below and see your SAP P2P process automated end to end.

FAQs on the P2P process in SAP