P2P in the UK: How procure-to-pay improves spend visibility and control

In many organisations buying rarely follows a single path. A team raises a requisition in one system, another sends a quick supplier request by email and finance only sees the invoice processing stage once it reaches accounts payable (AP).

Over time this fragmented approach can create problems. Spending becomes difficult to track, approvals vary across teams and purchase orders don’t always match what was originally requested. In the UK, this can pose significant problems as procurement regulations increasingly require organisations to manage spending transparently and maintain clear records.

The procure-to-pay (P2P) process connects these activities into a single end-to-end process that helps improve visibility, strengthen compliance and streamline everyday procurement.
 

What does P2P mean?

P2P refers to the structured process that integrates purchasing requests, approvals, orders, receipts and payments into one workflow.

Instead of managing each step separately P2P connects purchasing activity into one end-to-end procurement system. This approach allows procurement and finance teams to monitor spending across the full procurement lifecycle – from the initial purchase requisition to final payment.

What sets P2P apart is its focus on the strong alignment between each component of the process. With clearly defined parameters and an established sequence, your organisation can make purchasing decisions that follow consistent policies and workflows. Over time, this enables better spend management and improves relationships with suppliers and vendors.
 

What procure-to-pay covers

In the procure-to-pay process, each operational step moves a purchase through the organisation in a structured way. Through this intentional sequence, organisations can better track purchases across the full supply chain lifecycle to increase visibility and control.

In practice the P2P process covers the following:

• Creating purchase requisitions

• Approving spending requests

• Issuing a purchase order (PO)

• Receiving goods or services

• Validating invoices

• Completing payment through accounts payable.

Why P2P matters beyond finance

A strong P2P process is increasingly seen as essential for modern procurement. PwC’s 2024 Digital Procurement Survey found that 96% of companies now use a procure-to-pay solution and other P2P services, a figure that reflects how widely structured purchasing processes have been adopted across organisations.

PwC’s survey identified that the main drivers of procurement digitalisation are efficiency gains, increased transparency into processes and improved procurement performance. This is because a well-designed and managed process makes purchasing faster and easier to verify. It also facilitates scalability as you can oversee more purchasing activity without increasing administrative workload.

Additionally, robust P2P processes enhance visibility into your organisation’s spending. This helps procurement leaders make better-informed decisions about suppliers, budgets and purchasing patterns. 

The impact extends to supplier relationships too. When purchasing and payment workflows are inconsistent, delays and errors can quickly damage trust. According to IFOL’s 2024 Accounts Payable Automation Trends report 41.4% of respondents said poor accounts payable processes damage supplier relationships. This highlights the operational cost of weak AP processes not just for finance but across the broader procurement ecosystem.
 

The steps of the P2P process

Most organisations follow a set structure when enacting the procure-to-pay process. Again, it’s worth emphasising that what defines P2P is its specific sequence of actions that optimise spend and value.
 

1. Requisition and approval

The process begins when an employee creates a purchase requisition. This request describes what the team needs, the expected price and which department budget will cover the purchase. 

The requisition moves through an approval workflow so managers or procurement teams can confirm that the purchase aligns with your organisation’s policies. Clear approval workflows are important here as they help prevent off-policy spending and contribute to effective budget control.
 

2. PO creation

Once a requisition is approved the organisation creates a purchase order. The purchase order formalises the transaction with the supplier. 

The PO confirms product details, pricing, delivery expectations and contract terms. This document also becomes an important reference point later during invoice validation.
 

3. Receiving and matching

After the supplier delivers goods or services, you confirm receipt. At this stage finance teams compare the purchase order, delivery confirmation and supplier invoice. This three-way authentication process ensures the organisation only pays for items that have been correctly ordered and received.
 

4. Payment

Finally the invoice moves into accounts payable. Finance teams verify the invoice and process payment according to agreed terms. 

Many organisations now use AP automation to reduce manual work, shorten cycle times and improve accuracy during invoice processing.
 

Why P2P matters today

As organisations grow procurement becomes more complex. Multiple departments buy from multiple suppliers across different systems, and without a structured P2P process your finance teams will struggle to maintain visibility across purchasing activity.

P2P addresses these challenges by creating a connected workflow across sourcing, ordering and payment.
 

Compliance and audit trails

A structured P2P process creates a clear record of purchasing activity. Each step – from requisition approval to payment – generates data that supports audit trails and risk management. This transparency allows you to demonstrate that purchases follow internal policies and approved contract terms.

Centralised buying solutions like Amazon Business can help enforce procurement policies during the requisition stage by guiding purchasing decisions and providing visibility across spend.
 

Budget control

The P2P process creates a node that connects purchase requisitions, purchase orders and invoices, enabling finance teams to monitor spending earlier in the procurement cycle. This visibility fosters more accurate forecasting and lets you manage cash flow more effectively.
 

Reduced manual work

Manual procurement processes often require teams to move data between systems. But by introducing process automation and e-procurement workflows you can reduce repetitive tasks, facilitate file sharing and shorten approval cycles. This way, you spend less time chasing paperwork and more time on strategic sourcing initiatives.
 

P2P vs. S2P vs. O2C

Procurement terminology can sometimes feel confusing as several processes describe similar activities.
 

Key differences

Source-to-pay (S2P) covers the full supplier lifecycle including strategic sourcing, supplier evaluation, contract lifecycle management and purchasing.

Procure-to-pay (P2P) focuses on the operational purchasing steps after suppliers are selected.

Order-to-cash (O2C) describes the opposite side of the transaction. Instead of purchasing, it tracks how organisations sell products and collect payment from customers.
 

Where P2P fits

Rather than being a step in the procurement lifecycle, the procure-to-pay process offers a streamlined, value-optimising method for approaching procurement as a whole. It connects supplier agreements created during the sourcing and contracting stages with the financial workflows that occur within accounts payable systems.

When these systems integrate with enterprise resource planning (ERP) or e-procurement tools you can maximise efficiency and returns while managing purchasing data across the entire supply chain.
 

Improving your P2P process

Small changes to your procurement systems can significantly boost operational efficiency. Better approvals, automation and real-time reporting can minimise delays, improve visibility and free up both time and operational bandwidth across your P2P workflows.
 

Standard approvals

With clear approval workflows, you can ensure every purchase requisition follows the same process with reference to a central authority. This consistency makes the overall procure-to-pay process easier to scale as the organisation grows.

Defined approval steps clarify responsibilities and budget expectations across procurement and finance teams. The standardised approval functions within P2P systems help reduce inconsistent purchasing decisions and avoid unnecessary back-and-forth messaging between stakeholders.

When approvals happen in a structured way, your organisation also gains better financial control. Each step in the workflow verifies budget ownership, validates spending permissions and confirms the authorisation of purchasing decisions.
 

Automation

IFOL’s report revealed that 52% of AP professionals spend over ten hours a week processing invoices. This is usually due to time-consuming, error-prone manual processes and reliance on documentation outside of a central server or source of truth.

To address this issue, many organisations now use automated procurement solutions to streamline routine tasks and reclaim that lost time. Automated approval routing, digital invoice matching and AP automation minimise repetitive manual work and lessens the need for input from intermediaries and teams external to procurement and finance.

Automation also enhances the user experience of procurement tools. Faster processing reduces invoice backlogs and shortens procurement cycle times meaning you can operate more efficiently and protect your bottom line.
 

Better reporting

Stronger spend analysis and efficient reporting tools afford transparency, which enables better decision-making and supplier management across the supply chain. When procurement data flows through a single system, teams gain real-time insights into supplier activity, spending patterns and procurement performance that enable you to optimise spending and reduce risk. 

The PwC survey found that 55% of organisations benefited from increased transparency and traceability after implementing a digital procurement solution. This trend highlights the value of integrated P2P systems for monitoring procurement activity at scale.

Solutions such as Amazon Business can support these efforts by helping organisations centralise purchasing activity and maintain a clear view on everyday procurement operations.
 

Making P2P work

A strong procure-to-pay process connects the everyday activities that keep your organisation running. When requisitions, approvals, purchase orders and payments follow the same workflow, your procurement and finance teams gain clearer visibility across spending. This fosters better control of your budget, improved supplier management and stronger compliance across purchasing decisions.