• 9 min read

Integration Platforms

See what integration platforms solve, what they cost to own, and when custom API integration works better for growing Australian businesses.

Quick answer: Integration platforms (iPaaS) connect systems like Xero, HubSpot and Shopify; the right fit depends on data complexity, and custom APIs often work better for legacy systems.

  • Platform Engineering
  • System Integration
  • Cloud Engineering
  • API Development
Jump to section
  1. What Is an Integration Platform?
  2. Platform Engineering vs Integration Platforms
  3. Build, Buy or Middleware: Choosing the Right Approach
  4. Cost and Complexity of Owning an Integration Platform
  5. Integration Platform Questions, Answered

Quick answer

What is an integration platform and does your business actually need one?

High confidenceVerified 31 Aug 2026
An integration platform (iPaaS) connects existing systems such as Xero, HubSpot and Shopify so data moves automatically; it suits standard cloud-to-cloud connections, while complex or legacy systems often need custom API integration instead.

Sources

Platform Engineering Fundamentals

What Is an Integration Platform?

An integration platform, often called iPaaS (integration platform as a service), is software designed to connect other systems and move data between them without hand-coded, point-to-point links for every connection. Tools such as Boomi, Workato, MuleSoft, Zapier and n8n fall into this category, alongside the native connectors bundled into many CRM Integration tools. Instead of writing a fresh script every time Xero needs to talk to a warehouse system, or Shopify orders need to land in HubSpot, an integration platform provides pre-built connectors, a visual workflow builder and monitoring in one place.

For a business running several well-documented cloud tools with straightforward, high-volume data flows, an off-the-shelf platform is often the more efficient choice, a genuine case of buy beating build. Where the connection involves a legacy on-premises system, complex business logic, or data volumes the standard connectors were not built for, a purpose-built system integration layer usually performs better and costs less to run over several years.

Platform Engineering vs Integration Platforms

Platform engineering is a broader discipline than any single tool. It is the practice of building internal, self-service infrastructure so engineering teams can deploy, test and operate software consistently, without reinventing environment setup, pipelines or monitoring on every project. DevOps describes practices for collaboration between development and operations; site reliability engineering (SRE) keeps production systems reliable against measured error budgets; platform engineering builds the internal product, sometimes called the paved road, that makes both repeatable at scale.

An integration platform is one category of tooling a platform engineering function might operate, sitting alongside API gateways, CI/CD pipelines and cloud infrastructure. The practical question for most growing Australian businesses is rarely whether they need platform engineering as an abstract capability. It is whether the specific connections between finance, CRM and operational systems are reliable, secure and something the internal team can run day to day, not whether the label on the toolset matches an enterprise engineering org chart.

Connecting Systems Without Losing Control of Them

Problem

Many growing Australian businesses run Xero, HubSpot, Shopify or an industry-specific platform side by side, with staff manually re-entering the same order, customer or invoice data between them because the systems were never built to talk to each other.

Business Impact:

Time Wasted:Staff time lost re-keying data between disconnected systems each week
Cost Implication:A recurring administrative cost from manual reconciliation and the errors it introduces
Opportunity Cost:Reporting and decision-making delayed because data sits in silos rather than flowing where it is needed

Solution

A right-sized integration layer, built using proven middleware or purpose-built APIs, connects existing systems so data moves automatically while each platform stays in place.

Our Approach:

  1. 1
    Map the data flows that matter(Typically 1-2 weeks)

    Identify which systems genuinely need to exchange data, in what direction, and how often, before selecting any tool.

  2. 2
    Assess buy versus build per connection(Typically 1-2 weeks)

    Test whether an existing connector or iPaaS tool meets the requirement, or whether a custom API integration is justified.

  3. 3
    Build and stage the integration(Varies by scope, generally 4-12 weeks)

    Implement the chosen approach in a staged, reversible way, starting with the highest-value data flow.

  4. 4
    Hand over with monitoring and documentation(Final 1-2 weeks)

    Ensure the internal team can operate, monitor and extend the integration without ongoing dependency on the delivery team.

Expected Outcome:Systems that share data automatically and reliably, with fewer manual touchpoints and an architecture the internal team can maintain.

Key Takeaways

What to Take Away About Integration Platforms

  • Integration platforms solve a specific connectivity problem, not every systems problemImportant

    iPaaS tools such as Boomi or Workato excel at connecting well-documented SaaS APIs with standard data volumes, but struggle with complex legacy systems or bespoke business logic.

  • Platform engineering is a discipline, not a single product you buyImportant

    It covers self-service infrastructure, developer experience and operability - an integration platform is just one tool a platform engineering function might operate.

  • Buy-versus-build should be assessed per integration, not as a blanket policyImportant

    Some connections between Xero, Shopify or HubSpot suit an off-the-shelf connector, while others involving legacy ERP or custom logic are better served by a purpose-built API layer.

  • Ownership and maintainability matter more than the initial buildCritical

    An integration architecture the internal team cannot operate, monitor or extend after handover becomes a liability rather than an asset, regardless of which platform built it.

Choosing an integration platform is a requirements decision, not a brand decision: match the tool to the systems, data volumes and team that will run it long after go-live.

Cloud and Connectivity Adoption in Australia

Australian businesses have moved decisively onto cloud and connected infrastructure, which is the backdrop against which integration and API decisions are made.

55%

Paid cloud computing adoption

Significance: high

Share of Australian businesses reporting use of paid cloud computing services, the foundation layer most integration and API work builds on.

Source:ABS Characteristics of Australian Business 2019-20
over 91%

Internet service adequacy

Significance: medium

Share of Australian businesses saying their internet connection met most or all of their business needs, relevant to always-on integration work.

Source:ABS Characteristics of Australian Business 2024-25
37%

Data breaches from human error

Significance: medium

Share of notifiable data breaches in Australia attributed to human error rather than malicious attack, a risk automation can reduce.

Source:OAIC Notifiable Data Breaches Report January-June 2025

Integration Economics

Build, Buy or Middleware: Choosing the Right Approach

The decision between an off-the-shelf integration platform and a custom-built connection should be made per integration, not as a company-wide policy. A subscription iPaaS tool tends to win when the systems involved have modern, well-documented APIs, the data volumes are moderate, and the workflow logic is close to what the vendor's templates already assume. Custom API development, or middleware built specifically for the task, tends to win when a legacy ERP lacks a usable API, when data volumes are high enough to strain generic connectors, or when the business logic is specific enough that forcing it into a generic tool creates more workarounds than it saves.

Many Australian businesses start this evaluation with ERP Integration, because finance and operations systems tend to be the oldest, most business-critical, and least standardised platforms in the stack. Getting that connection right, whether through a configured iPaaS tool or a purpose-built API, often does more for data accuracy than any front-end system change.

Cost and Complexity of Owning an Integration Platform

Ownership cost has two parts: the platform licence or subscription itself, and the ongoing internal or contracted capacity needed to monitor, maintain and extend the integrations running on it. An off-the-shelf platform reduces the initial build effort but adds a recurring subscription and an administrative overhead that scales with the number of connections. A custom-built integration shifts more cost to the initial build and documentation, in exchange for lower or no recurring licence fees, which can change the total cost of ownership meaningfully over a multi-year horizon.

The consistent principle, regardless of which approach fits, is that infrastructure should sit in accounts the business controls, and the resulting architecture should be one the internal team can actually operate after handover. Progressive, staged legacy system modernisation beats a big-bang replacement in almost every case, because it keeps the business trading while each connection is proven before the next one is built.

Ready to Connect Your Systems Properly?

Talk to National Digital about whether an off-the-shelf integration platform, a custom API layer, or a blend of both fits the systems you run today and the scale you're growing into.

Email Our Team

or enquiries@nationaldigital.com.au1300 800 855

Integration Platform Questions, Answered

What is platform engineering, in plain terms?
Platform engineering is the discipline of building internal, self-service infrastructure so engineering teams can deploy, test and operate software consistently, covering standardised environments, CI/CD pipelines, API gateways and observability as an internal product. An integration platform is just one tool a platform engineering function might use, not the discipline itself.
How does platform engineering differ from DevOps and SRE?
DevOps describes practices that bring development and operations closer together, such as continuous delivery and shared release ownership. Site reliability engineering (SRE) applies engineering rigour to production reliability, often measured against error budgets. Platform engineering builds the internal, self-service infrastructure that makes both repeatable at scale, rather than rebuilding tooling for every new project or team.
What is an integration platform (iPaaS) and when do we need one?
An integration platform, or iPaaS, connects other systems and automates data movement using pre-built connectors and a visual workflow builder. It suits businesses with several well-documented cloud tools, such as Xero, HubSpot or Shopify, and straightforward data flows. Where systems are legacy, on-premises, or involve complex business logic, purpose-built API integration usually performs better.
Should we buy an off-the-shelf integration tool or build custom APIs?
It depends on the specific connection, not a blanket policy. Off-the-shelf tools such as Boomi, Workato or Zapier often suit standard SaaS-to-SaaS connections with predictable data volumes. Custom API development tends to be justified where a legacy ERP or CRM lacks modern connectors, data volumes are high, or business logic is specific enough that generic connectors need extensive workarounds.
What does an integration platform cost to own once it's live?
Ownership cost has two parts: the platform licence or subscription, and the ongoing capacity needed to monitor, maintain and extend the integrations running on it. Off-the-shelf iPaaS tools reduce build cost but carry recurring subscription and administration overhead. Custom-built integrations shift cost to the initial build in exchange for lower recurring fees, changing total cost of ownership over several years.
Does National Digital sell or resell integration platform software?
No. National Digital designs and builds the integration architecture, whether that means configuring an existing iPaaS tool, developing custom APIs, or a blend of both, with infrastructure set up in accounts the client controls rather than National Digital's own. The goal is a system the internal team can operate and extend after handover, not an ongoing dependency on a particular vendor's platform.

Written by Cameron Young, CEO

  • 9 min read

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