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Systems integration

Cloud ERP systems: What they solve & what they miss

Learn how a cloud ERP system works and how you can expand its procurement functionality to improve visibility and control.
Matt Owings

When purchasing is fragmented across departments, spending is on the rise and procurement lacks real-time visibility, there’s a good chance your organisation is in need of a systems upgrade. Cloud ERP systems are a common choice as they can streamline and connect various operational workflows while offering real-time data insights that help you make smarter business decisions.

 

However, a cloud ERP system typically only addresses a portion of the challenges growing organisations face. They often don’t capture all organisational spend – including everyday tail-spend purchases – meaning you don’t quite have all the insights you need to improve your operations and cut costs.

 

The key is to understand how ERP systems can facilitate the process, where they fall short and how you can close these gaps.

What is a cloud ERP system?

A cloud enterprise resource planning (ERP) system is a business software solution that integrates data across multiple departments – typically including finance, human resources, inventory management, supply chain management and procurement – into a single solution. Cloud ERP solutions help organisations save time and money through streamlined workflows, real-time data visibility and automated controls.

 

Unlike on-premise alternatives, cloud-based ERP systems are hosted on the software provider’s servers and accessible via an internet connection. Instead of paying for in-house servers and maintenance, you typically pay a monthly or yearly subscription fee and access the software through an app or browser.

Cloud ERP vs on-premise ERP systems

The main differences between cloud ERP and on-premise ERP systems are where the software lives and who manages it.

 

A cloud ERP system is hosted off-site – it’s on the software vendor’s servers instead of yours. Maintenance and upgrades are handled by the vendor while security responsibility is shared between the vendor and the user. It can be accessed from anywhere with an internet connection and scaled up or down by adding or removing users and modules. Your primary costs are subscription fees, implementation costs and user training costs.

 

An on-premise ERP system is hosted on-site, using your own servers. It requires an in-house IT team to manage maintenance and manually install upgrades, and security falls entirely on your organisation. It typically only offers on-site access so scalability is limited to what infrastructure you have. Costs are often higher, as you need to invest in licences and hardware alongside ERP implementation and training costs.

 

Cloud-based and hybrid systems represent the majority of the ERP market share (around 83.07% in 2026). However, some organisations may still opt for legacy systems if they have strict data ownership or data security requirements or if their systems are heavily customised.

How cloud ERP systems work

Cloud-based ERP solutions establish a shared central database that automatically updates as information changes within an organisation. For example, if an employee logs an invoice, updates stock levels for a stock-keeping unit (SKU) or raises a purchase request, the system will reflect that change – enabling authorised users to see and act on it in real time.

 

The result is that every team in your organisation is working from the same data. Finance can see what’s happening in operations, production is informed about what’s happening in engineering and sales is aware of what’s available in the warehouse. Because the system is cloud-based, it receives automatic updates and upgrades from the vendor, taking this responsibility off your IT staff.

Core functions of a cloud ERP system

Cloud ERP systems are typically modular, meaning organisations can select the specific functions they require without paying for extra features. The most common cloud ERP system functions include:

  • Finance and accounting: accounts payable, accounts receivable, cash flow management, financial reporting and general ledger

  • Human resources: payroll, workforce management and recruitment

  • Procurement: purchasing, supplier relationship management, order management and invoice processing

  • Supply chain management: inventory control, demand forecasting, supply planning and logistics

  • Project management: budget management, project roadmaps, resource allocation and project tracking

  • Customer relationship management (CRM): sales pipeline, customer management and performance tracking.

 

There are also dozens of industry-specific features offered by many ERP providers. A manufacturer, for example, may require a production planning module or an online retailer may need an ecommerce module.

Where cloud ERP systems fall short

Most cloud ERP systems are designed to manage structured, predictable purchasing. But real spend management is rarely that simple – the day-to-day buying behaviours in most organisations are often invisible to cloud ERPs.

 

When it comes to procurement, cloud ERP systems often struggle with challenges like:

  • Limited visibility into everyday spend: While ERP systems track authorised purchases through approval channels, they often miss tail spend – the small, frequent purchases that teams buy outside the system.

  • Decentralised purchasing across teams: When spending happens independently across departments or business units, your spend data becomes opaque – making it difficult to know exactly what you’re spending and who your key suppliers are.

  • Gaps in policy enforcement: Although ERP workflows can help enforce approval rules, they don’t prevent employees from finding workarounds – which means off-contract purchasing becomes a blind spot in your spend analysis.

  • Supplier fragmentation: Many cloud ERP systems lack a built-in supplier catalogue, which results in missed cost savings opportunities and increased administrative labour, supply chain risk and supplier sprawl.

 

When your ERP system doesn’t account for the realities of day-to-day buying, you lack oversight over the cumulative effect of your organisation’s smaller purchases. This figure is significant: according to Gartner’s 2025 Innovation Insight: Managing Tail Spend Technology Solutions report, unmanaged spend represents 7% of the average company’s total procurement spend.

Why procurement teams need more than ERP

An effective procurement solution works alongside your enterprise resource planning system, plugging the gaps to ensure a fully efficient, compliant and visible purchasing process.

 

The ERP system acts as the central repository of records. It contains all your key financial and operational business data, and helps you streamline and optimise core business processes within your organisation.

 

Meanwhile, modern procurement tools ensure the compliant path is the easiest path so employees don’t resort to workarounds when approvals are too slow or they require something urgently. They support your ERP system by enforcing procurement policy while ensuring data is accurate and shared between your finance and procurement teams.

Key benefits of cloud ERP for organisations

Cloud ERP systems offer many advantages for growing organisations, combining accurate live data with faster workflows designed to scale alongside the needs of your organisation.

Improved visibility across operations

An ERP system centralises all the buying, financials, and other task, inventory and staffing workflows across your organisation. This allows stakeholders to make more informed decisions as to where they invest, how they strategise and which activities require the most attention.

 

With finance, operations and procurement data brought together into a single system, teams gain real-time visibility into cash flow, inventory levels and purchasing. They no longer have to wait for monthly reports that may be incomplete or out-of-date.

Scalability for growing organisations

Scalability is one of the biggest advantages of cloud-based ERP systems. As the size and complexity of your organisation grow, you can add new users and modules to your system to address changing business needs.

 

Unlike on-premise alternatives, cloud ERP systems require very little capital and IT time beyond basic subscription and implementation costs.

Reduced manual processes

Manual workflows are a common inhibitor of business efficiency. They’re time-consuming, error-prone and expensive.

 

Cloud ERP systems speed up your workflows with features like AP automation, payroll management and inventory optimisation. This frees up more time for your teams to focus on work that directly supports your organisation’s growth strategy.

Better data for decision-making

Cloud ERP systems ensure all your business data is connected, giving you access to accurate real-time insights across every business function. This means forecasting is more reliable, compliance is easier to enforce and demonstrate, and reconciliation is less likely to produce errors.

 

With this visibility, decision-makers also gain a better understanding of the various dependencies between different departments. This means they’re better able to create strategies that deliver the most value for the organisation as a whole.

Extending cloud ERP via smart purchasing tools

To extend the capabilities of your ERP system, you need something that addresses the everyday purchasing that happens within your organisation. Instead of replacing the solutions you already have, Amazon Business provides spend management and procurement tools that integrate with many leading ERP and e-procurement systems.

Centralising purchasing across users

Amazon Business allows you to set up multi-user accounts that each have their own configurable spending rules and approval workflows. This gives your teams flexibility while ensuring all purchases support compliant buying.

 

Procurement and finance teams have full visibility over how much money is being spent and where, including tail spend purchases.

Improving compliance with guided buying

Guided Buying directs employees to preferred suppliers and products at the point of purchase, building compliance directly into the purchasing process.

 

Instead of expecting your employees to remember your organisation’s procurement policies, Amazon Business automatically guides them along the compliant path. This can help reduce maverick spend while removing approval bottlenecks for low-cost items.

Gaining insight through spend analytics

Amazon Business provides detailed spend analytics that integrate with your cloud ERP system, helping you understand procurement performance and identify needs or opportunities in real time. You get line-item visibility into transaction data, category-level reporting and insights into how suppliers are performing against contract expectations.

Integrating with existing systems

Amazon Business supports punchout, punch-in, integrated search and single sign-on integrations with many leading cloud ERP software systems and procurement platforms. On top of this, you have the added benefit of accessing thousands of cost-effective products via the Amazon Business catalogue.

From cloud ERP to managed spend

A cloud ERP system operates as an essential foundation for growing organisations. It brings all your data into one place, streamlines key workflows and gives you the insights you need to understand how your business is performing in real time.

 

But it isn’t enough to just capture all organisational spend, including the everyday purchases that happen across different teams. To cut down on tail spend, ad-hoc orders and maverick buying you need a complementary layer of procurement functionality.

 

Speak to one of our team members to learn how Amazon Business can help your organisation extend your ERP’s reach and gain greater control over company spend.

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FAQs about cloud ERP systems

  • Traditional (on-premise) ERP systems require the buyer to host and maintain the software on their own servers and to hold responsibility for upgrades, security and backups. Cloud ERP systems are hosted by the vendor and accessed through an internet connection. They operate under a software-as-a-service (SaaS) model where you pay a subscription fee rather than high upfront costs, with the vendor handling all infrastructure management.

  • Yes, cloud ERP is often a good fit for medium-sized businesses because it removes the need for enterprise-grade IT infrastructure in-house. Modular pricing allows you to pay only for the functionality you need so the system can scale with your organisation as it grows.

  • Not entirely. Cloud ERP systems typically only manage structured and planned purchasing like formal purchase orders, approved supplier transactions and budget-tracked expenditure. They often don’t capture tail spend, ad-hoc purchases or buying that takes place outside formal procurement workflows. Supplementary procurement tools are frequently used alongside ERP platforms to control all organisational spend.

  • Yes, Amazon Business integrates with many ERP, e-procurement and expense management systems, including SAP, Oracle and Microsoft Dynamics. Integration options include punchout, punch-in, integrated search and single sign-on, allowing buyers to access the Amazon Business catalogue from within their existing systems while maintaining the approval workflows and spend controls your organisation already has in place.

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.