Enterprise guide to ERP implementation: Drive strategic transformation

For enterprise procurement teams seeking to drive strategic transformation, implementing an enterprise resource planning (ERP) system is a critical milestone. ERP systems empower organisations by centralising business data across finance, inventory management, and supply chain operations, delivering the real-time spend visibility necessary to unlock significant cost savings.

While an ERP system can support procurement, many organisations require additional tools to manage everyday purchasing. Getting ERP right also means considering how your new system integrates with other solutions and avoiding common implementation pitfalls.

What does ERP implementation mean for organisations?

ERP implementation is the process of configuring, deploying and adopting an enterprise resource planning system across an organisation. It involves transferring data from existing systems into the new solution, connecting the ERP to existing tools, setting up key workflows and training employees on how to use it effectively.

Why do organisations implement ERP systems?

Organisations typically choose to implement an ERP system for one or more of the following reasons:

• Replacing legacy systems that lack the capacity to support their current growth needs

• Consolidating data across departments and business functions into a single, unified solution

• Streamlining manual workflows like invoice processing and approval routing with automation to save time and reduce errors

• Improving forecasting or financial reporting accuracy with real-time data

• Meeting ongoing compliance and audit requirements effectively

As organisations grow, operational complexity often becomes too challenging or too time-consuming to manage with a patchwork of plug-and-play tools. While these siloed systems work well for a while, the cost of manually transferring data or relying on workarounds can soon outpace the cost of implementing a single, unified ERP solution.

How do ERP systems support procurement?

ERP systems turn procurement from a reactive, transaction-clearing function into a strategic driver, giving teams a level of visibility that disconnected or spreadsheet-based systems cannot match. By providing real-time insight into supplier management, purchase orders, spend analytics and budget controls, they help improve decision-making across the wider organisation.

However, most ERP systems are only designed to support structured, high-value procurement. They don’t account for everyday tail spend purchases like office supplies, IT consumables and facilities goods. These purchases are often managed outside the ERP system, which can leave gaps in spend visibility across the organisation.

5 steps to implement ERP

Gartner predicts that 25% of ERP implementations will “fail catastrophically” by 2027. Poor planning and misalignment typically cause these failures, not the complexity of the process itself. Follow these five steps to give your organisation the best chance of a successful ERP implementation.

Step 1: Planning the project

To prevent scope creep, the implementation project manager and key stakeholders establish a clear roadmap that covers key business goals, operational requirements, a realistic budget and expected scope. Define KPIs that enable you to measure implementation success after deployment.

Step 2: Configuring the system

Work with your ERP software implementation partner to configure the ERP to your specific business needs. First, map any existing business processes to the system’s modules and then decide which areas require customisation. Be wary that over-customising can increase implementation costs, extend the overall timeframe and present challenges when future upgrades are required.

This stage often involves using a dedicated testing environment to validate workflows before any data is transferred into the new system. You may benefit from testing one process or business area at a time.

Step 3: Migrating data and connecting systems

Before transferring historical data from your existing systems, ensure it’s clean, accurate and properly formatted. Errors carried over at this stage are difficult to fix later and can undermine the accuracy of your reporting, forecasting and compliance from day one. Work closely with an implementation expert to avoid inaccuracies.

Set up connections between the new ERP system and adjacent tools like your CRM, order management software and e-procurement tools. Map out every connection before you begin to avoid costly delays.

Step 4: Testing and training employees

It’s significantly cheaper to fix issues during the testing phase than after launch, so perform rigorous tests across all the key workflows you’ll be using. Test integrations and data accuracy to ensure correct setup and identify potential problems early.

To promote user adoption and get the most out of your new system, conduct thorough training for end-users that focuses on showing employees how to use it for their specific role and why it’s preferred over the previous system. Identify employees within each team who can champion the new system and provide ongoing support to their colleagues.

Step 5: Launching the system

Once testing is complete, you can choose between a phased rollout—launching and monitoring one module or business unit at a time—or an all-at-once implementation. Many ERP specialists recommend a phased approach as it carries significantly less risk and can reduce disruption to your daily business processes, despite taking longer.

Once the system is live, actively monitor KPIs against your targets and look out for any opportunities to adjust or iterate your workflows based on how it’s performing.

Common ERP implementation challenges

ERP implementation presents several risks that, if left unchecked, can cause major financial and operational problems for your organisation:

• Poor change management: Even the best systems will fail to meet your KPIs if there's a lack of employee adoption or leadership buy-in. Each department should have a dedicated change champion to support adoption and troubleshooting.

• Scope creep: New requirements like extra modules or additional training introduced mid-project can inflate budgets and delay deployment timelines. A clearly documented scope, with a formal process for reviewing any changes to it, keeps this in check.

• Data migration problems: Incomplete or wrongly formatted data prevents your new system from surfacing the insights you need. Effective data management and cleansing before you migrate anything from your existing systems reduces this risk.

• Integration challenges: The technical complexity of connecting older or industry-specific tools to your new ERP can lead to extra downtime and costs. A clear integration plan for each existing application, mapped before implementation begins, helps avoid this.

• Budget and timeline overruns: Projects often go over budget or beyond expected timelines when teams underestimate staffing requirements, the initial project scope grows during implementation or technical issues surface unexpectedly. These factors are worth building into your budget and go-live dates from the start.

• Inadequate user training: If staff aren't properly trained on how to use the new system for their specific role or aren't confident about how it works, they'll often find costly workarounds that shrink the value your ERP is supposed to deliver.

With only 46% of organisations completing implementation projects within budget, according to RCademy, staying ahead of these challenges can help you protect the return on your system investment.

How do ERP systems fit into modern procurement systems?

Together, ERP systems and modern procurement solutions provide the foundation for a highly cost-effective and efficient supply chain management process. With the right strategy, these systems help you centralise purchasing, improve procurement visibility and control unmanaged spend.

Why don’t ERP systems capture every purchase?

Most ERP systems are designed for structured, formal procurement: raising purchase orders, managing supplier contracts and automating AP processes for high-value, recurring purchases.

In practice, many purchases fall outside of this neat window. Team members often make low-value, one-off and urgent orders through informal channels, including from unapproved suppliers, and these remain invisible to an ERP system. That gap in spend visibility ultimately undermines your procurement strategy and ability to effectively control company spend or forecast budget requirements.

How can organisations centralise everyday purchasing?

To bridge the gap, many organisations use an e-procurement solution to control everyday purchasing and simplify how employees buy approved items, reducing the need for workarounds.

This improves financial visibility and forecasting accuracy and supports compliance with internal buying policies and regulatory requirements. Centralising purchasing helps to promote a more resilient, future-proofed supply chain management strategy.

Amazon Business supports purchasing visibility

Amazon Business provides direct integrations with a wide range of ERP and e-procurement systems to help organisations centralise purchasing, eliminate maverick spend and increase financial visibility, configurable approval workflows, detailed spend analytics tools, Guided Buying (a Business Prime feature) and multi-user account management to help you understand what you’re buying, who you’re buying from and where cost savings opportunities exist.

Instead of replacing your ERP, Amazon Business works alongside it to capture the everyday purchasing activity that other systems miss.

ERP implementation is only the beginning

Getting your ERP system right is a significant milestone, but simply deploying a system doesn’t mean it’s going to work. Successful ERP requires continuous optimisation of workflows, performance monitoring, user training and alignment with your evolving business objectives.

In short, the day you launch your new system should be treated as the start of a longer journey. Ensuring effective management of your everyday purchasing activities is a critical part of that process. If employees continue to buy outside of approved channels, you end up with a large volume of missing spend data that your ERP won’t be able to account for.

Chat to our team today to learn more about how Amazon Business helps organisations centralise purchasing and gain greater visibility into operational spend.

This article was created by professional writers and editors with the assistance of AI-powered tools. AI was used in a supportive capacity only – for example, to aid with translation, content review, and alignment with brand guidelines. All substantive research, editorial decisions, and final approval were performed exclusively by human authors and editors, who retain full editorial responsibility for this publication.