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Procure to Pay Systems – From Business Case to Selection and Implementation
Across Australia and New Zealand, Procure to Pay (P2P) systems are increasingly seen as a cornerstone of modern finance and procurement operating models. When implemented well, they provide visibility over spend, enforce governance, streamline workflows, and reduce the administrative burden on teams. When implemented poorly, they can become expensive systems that frustrate users, slow down purchasing, and sit alongside spreadsheets and workarounds.
The challenge is not a lack of technology. The P2P market is crowded with solutions promising automation, compliance, analytics and control. The challenge lies in making the right decisions at the right time – starting with a clear business case, followed by disciplined system selection, and culminating in a well-governed implementation that genuinely changes how the organisation operates.
This article provides a practical, end-to-end perspective on Procure to Pay systems: what they are, why organisations invest in them, where programs typically fail, and how to approach business case development, selection and implementation in a way that delivers lasting value.
What is Procure to Pay – and why does it matter?
Procure to Pay refers to the end-to-end process that governs how organisations request, approve, purchase, receive, and pay for goods and services. In its simplest form, it spans:
- Requisitioning and approvals
- Purchase order creation and management
- Goods and service receipt
- Invoice processing and matching
- Payment and financial posting
- Reporting and compliance
In many organisations, these steps are fragmented across emails, spreadsheets, shared inboxes, finance systems and manual controls. This fragmentation creates risk, inefficiency and a lack of transparency over spend.
A well-designed P2P system provides a single workflow and system of record that connects procurement policy, supplier catalogues, approvals, invoicing and payment into one controlled process.
For CFOs, it improves visibility and financial control.
For procurement leaders, it supports compliance and category management.
For operational teams, it simplifies how they request and receive what they need.
The value is not just transactional efficiency – it is better decision-making across the organisation.
Why organisations invest in Procure to Pay systems
While each organisation has its own drivers, common motivations for investing in P2P systems include:
- Lack of visibility over spend, particularly indirect and services spend
- Poor compliance with procurement policies and preferred suppliers
- Manual invoice processing driving cost, delays and errors
- Limited ability to enforce approvals and delegations
- Supplier dissatisfaction due to late or inconsistent payment
- Audit findings related to controls and segregation of duties
- Pressure to reduce operating costs without cutting service
Increasingly, P2P systems are also seen as an enabler for broader transformation – supporting strategic procurement, better contract management, and more robust ESG and compliance reporting.
The reality: why many P2P programs underdeliver
Despite the clear value proposition, many Procure to Pay implementations fail to deliver their promised benefits. In some cases, organisations end up with a system that technically works, but is poorly adopted, heavily customised, or bypassed entirely.
Common causes include:
Weak or generic business cases
Business cases that focus purely on licence costs and high-level efficiency assumptions often fail to build genuine executive alignment or set realistic expectations.
Treating P2P as a technology project
When P2P is led solely as an IT implementation, process design, operating model alignment and change management are often underdone.
Selecting systems before defining requirements
Jumping to vendor demonstrations without clarity on what the organisation actually needs leads to mismatched solutions.
Over-customisation
Excessive tailoring to replicate legacy processes undermines standardisation, increases cost and complicates future upgrades.
Underestimating change management
P2P changes how people buy, approve and engage with suppliers. Without structured change and engagement, resistance is inevitable.
Understanding these pitfalls is critical before embarking on the journey.
Step 1: Building a robust Procure to Pay business case
A strong business case is the foundation of a successful P2P program. It does more than justify investment – it aligns stakeholders on what success looks like and why change is necessary.
Clarifying the problem to be solved
Effective business cases start with a clear articulation of current pain points, supported by evidence rather than anecdotes. This might include:
- Process mapping to identify inefficiencies and duplication
- Analysis of invoice volumes, touchpoints and exception rates
- Spend visibility assessments, particularly for indirect categories
- Compliance gaps against procurement policies and delegations
- Audit findings or risk exposures
The goal is to create a shared understanding of the current state and the cost of doing nothing.
Defining benefits beyond cost savings
While efficiency savings are important, P2P business cases should also capture qualitative and strategic benefits, such as:
- Improved governance and control
- Faster cycle times for requisition to payment
- Better supplier relationships
- Stronger data for procurement and finance decision-making
- Reduced reliance on key individuals and workarounds
These benefits are often more durable than short-term headcount reductions and resonate strongly with executive stakeholders.
Establishing realistic assumptions
One of the most common weaknesses in P2P business cases is overly optimistic assumptions about automation rates, compliance uplift or behavioural change.
A credible business case is conservative, transparent and grounded in the organisation’s maturity, culture and operating environment. It clearly articulates what needs to change operationally for benefits to be realised.
Step 2: Defining requirements before going to market
Once the business case is endorsed, organisations should invest time in clearly defining their requirements before engaging vendors.
Understanding the operating model
P2P systems must align to how procurement and finance actually operate. Key questions include:
- What level of centralisation or decentralisation is required?
- How will approvals work across different spend types?
- What categories require catalogues versus free-text purchasing?
- How will services procurement be managed?
- What role will procurement play versus finance?
Without clarity on the operating model, system selection becomes guesswork.
Distinguishing “must haves” from “nice to haves”
Not every feature matters equally. Clear prioritisation helps avoid over-engineering and keeps selection focused on what will genuinely drive value.
This discipline also prevents vendors from steering conversations towards features that sound impressive but are rarely used.
Considering integration and data architecture
P2P systems do not operate in isolation. Integration with finance, ERP, contract management and supplier master data is critical.
Requirements should explicitly consider:
- Data ownership and governance
- Master data management
- Reporting and analytics needs
- Future scalability
Ignoring these considerations early can create long-term constraints.
Step 3: Procure to Pay system selection
With requirements defined, organisations can move into a structured selection process.
Creating a level playing field
A disciplined approach ensures that all shortlisted vendors are assessed against the same criteria, scenarios and assumptions. This avoids decisions being driven by presentation quality rather than substance.
Looking beyond demonstrations
Vendor demonstrations often show idealised scenarios. Selection teams should test how systems handle real-world complexity, exceptions and edge cases relevant to their organisation.
Understanding total cost of ownership
Licence costs are only one component of cost. Implementation effort, configuration, support, internal resourcing and ongoing change all contribute to the true investment required.
Assessing vendor fit, not just product fit
Long-term success depends on more than functionality. Vendor stability, local support capability, implementation ecosystem and product roadmap all matter – particularly for Australian and New Zealand organisations operating in smaller markets.
Step 4: Implementation – where value is won or lost
Implementation is where many P2P programs struggle. Success depends less on technical execution and more on how well the organisation manages change.
Process first, system second
Implementation should reinforce standardised, future-state processes rather than replicating legacy ways of working. This often requires difficult conversations about policy, authority and accountability.
Governance and decision-making
Clear governance is essential to manage scope, resolve trade-offs and avoid uncontrolled customisation. Decisions delayed during implementation inevitably surface later as cost or usability issues.
Change management and user adoption
Procure to Pay systems affect a broad user base, many of whom do not see procurement or finance as their core role. Effective change management focuses on:
- Clear communication of “what’s in it for me”
- Simple, intuitive user journeys
- Role-based training
- Early engagement of influential users
Adoption is not automatic – it must be designed and managed.
Measuring success post-go-live
Organisations should define success metrics early and track them after go-live. These might include:
- Adoption and compliance rates
- Invoice cycle times
- Exception handling volumes
- User satisfaction
- Realisation of business case benefits
Without measurement, it is impossible to know whether the system is delivering value.
Procure to Pay as an enabler, not an end in itself
A P2P system is not the destination. It is an enabler for stronger procurement, better financial control and more informed decision-making.
Organisations that see P2P as a foundational capability – rather than a one-off system implementation – are better positioned to leverage it for:
- Strategic sourcing and category management
- Contract compliance and leakage reduction
- Supplier performance management
- ESG and regulatory reporting
This requires ongoing ownership, continuous improvement and alignment with broader business strategy.
How Trace Consultants can help
Trace Consultants supports Australian and New Zealand organisations across the full Procure to Pay journey – from initial business case through to selection and implementation support.
Our approach is grounded in a few key principles.
Independent and solution-agnostic advice
Trace is not aligned to any P2P software vendor or implementation partner. This ensures that recommendations are based solely on what is right for your organisation, not on selling licences or services.
Business-led, not system-led
We focus on clarifying the operating model, processes and governance first – ensuring that technology supports the business rather than dictating it.
Practical experience across procurement and finance
Our team brings hands-on experience across procurement, finance and supply chain, allowing us to bridge the gap between strategy and execution.
Structured selection and implementation support
From requirements definition and vendor evaluation through to implementation governance and benefits tracking, Trace provides end-to-end support to reduce risk and maximise value.
When should organisations revisit their Procure to Pay capability?
Common triggers include:
- Poor visibility over indirect or services spend
- Increasing invoice volumes and processing costs
- Audit or compliance issues
- Supplier dissatisfaction
- Growth, restructuring or system upgrades
- A desire to mature procurement capability
If these challenges sound familiar, it may be time to step back and reassess whether your current P2P capability is fit for purpose.
Final thoughts
Procure to Pay systems can deliver significant value – but only when approached as a business transformation, not a technology purchase.
The organisations that succeed are those that invest the time to build a clear business case, define what they actually need, select the right solution for their context, and manage implementation with discipline and care.
For Australian and New Zealand organisations navigating cost pressure, compliance requirements and increasing complexity, getting Procure to Pay right is not just about efficiency – it is about control, confidence and capability for the future.
Ready to turn insight into action?
We help organisations transform ideas into measurable results with strategies that work in the real world. Let’s talk about how we can solve your most complex supply chain challenges.






