What Is iPaaS?
iPaaS, or Integration Platform as a Service, is a cloud-based platform that connects different software applications, allowing data to flow between them without custom point-to-point integration code. It provides prebuilt connectors, workflow tools, and data transformation capabilities, letting businesses link systems like a CRM, an accounting platform, and an e-commerce store without developers building and maintaining each connection individually.
How iPaaS Works
- Connect to source and destination applications.
Using prebuilt connectors the platform maintains for popular software.
- Define the data flow.
What data moves, in what direction, and under what conditions, typically through a visual workflow builder rather than custom code.
- Map and transform data.
Translating field names and formats between the source and destination systems, since they rarely use identical structures.
- Automate the ongoing sync.
Once configured, data flows automatically going forward, triggered by events or run on a schedule.
What iPaaS Solves
Before iPaaS, connecting two systems required custom-built integration code, maintained by developers, for every single connection a business needed. iPaaS platforms maintain prebuilt connectors for hundreds or thousands of common applications, dramatically reducing the development effort needed for standard integrations between systems that both have modern APIs.
The Core Limitation: iPaaS Still Requires an API
An iPaaS platform connects to applications through their APIs. If a system has no API, an iPaaS connector cannot be built for it, regardless of how sophisticated the platform is otherwise. This is the same fundamental constraint described in ERP integration: iPaaS solves the problem of connecting two systems that both already support modern connectivity, but it does nothing for a system that does not.
This is precisely why legacy and desktop ERPs, common in mid-market distribution, manufacturing, and construction, remain outside what iPaaS platforms can address. A business running an API-less ERP cannot use iPaaS to connect it to anything, no matter which iPaaS vendor they choose, since the limitation sits with the ERP, not the integration platform.
iPaaS vs. Computer-Use Automation
- iPaaS:
Connects systems through their APIs, requiring both sides of the connection to support modern connectivity. Cannot reach systems with no API.
- Computer-use automation:
Operates a system through its user interface directly, the same way a person does, requiring no API on either end.
These solve different problems and are not really competing approaches: iPaaS is the right tool when connecting modern, API-enabled systems to each other, and computer-use automation is what remains available when one side of the connection, typically the legacy ERP, has no API for an iPaaS platform to connect to at all.
When Each Approach Applies
A business with a modern, cloud-based ERP connecting to other modern SaaS tools is well served by iPaaS, which is a mature, well-suited category for exactly that use case. A business running a legacy or desktop ERP with no API is not well served by iPaaS for that specific system, regardless of how many connectors the platform offers, because the constraint is the ERP's lack of an API, not a gap in the integration platform's connector library.
Frequently Asked Questions About iPaaS
iPaaS, or Integration Platform as a Service, is a cloud-based platform that connects different software applications using prebuilt connectors and workflow tools, letting data flow between systems without custom point-to-point integration code.
It connects to source and destination applications through prebuilt connectors, lets users define data flow through a visual workflow builder, maps and transforms data between systems' different formats, and automates the ongoing sync once configured.
3. Can iPaaS connect to any software system?
No. iPaaS connects to applications through their APIs, so a system with no API cannot be connected through iPaaS, regardless of the platform's overall capabilities. This is a limitation of the target system, not the iPaaS platform.
4. Why can't iPaaS help with legacy ERP systems?
Many legacy and desktop ERPs, common in mid-market distribution and manufacturing, were built before modern API standards existed and have no API for an iPaaS connector to use. The limitation sits entirely with the ERP, not with which iPaaS vendor is chosen.
5. What is the difference between iPaaS and computer-use automation?
iPaaS connects systems through their APIs, requiring both sides to support modern connectivity. Computer-use automation operates a system through its user interface directly, requiring no API at all, which reaches systems iPaaS cannot connect to.
6. When should a business use iPaaS versus computer-use automation?
iPaaS is well suited for connecting modern, API-enabled systems to each other. Computer-use automation is the applicable approach when one side of the intended connection, typically a legacy or desktop ERP, has no API for an iPaaS platform to connect to.
