Unit4 Developer Portal
Latest Updates
Launch Edition Dec 2025
Developer Portal is Live
The new centralised hub for ERPx API documentation and integration guide. Explore core sections: Getting Started, Authentication & Security, Webhooks & Events.
Launch Edition Dec 2025
First API documentation released
Ten core ERPx APIs are available at launch, giving developers instant access to data, reporting, and integration capabilities. Start exploring in the API References.
Launch Edition Dec 2025
Foundation for the Future
This release sets the stage for continuous improvement. Expect more APIs in upcoming versions.
MULTI-TYPE DATA COVERAGE
All Data, One Platform
Unit4 Developer Portal is the single platform to find all your U4ERP Integrations and more.
Welcome to U4 Developer portal
Discover the central hub for ERPx API documentation, integration guidance, and platform-wide standards. This first release includes the 10 most-used APIs - powering the majority of customer integrations - and introduces global sections such as Getting Started, Authentication, Limits, Events, and Versioning.
- Over 200 APIs are available across ERPx domains
- Portal launch with the 10 highest-impact APIs
- Structured documentation for fast onboarding
- Expanding coverage in every release
Documentation approach
We are committed to delivering documentation that is clear, accurate, and consistent. Each API comes with:
- Well-defined endpoints and parameters
- Example requests
- Guidance on authentication, pagination, and error handling
We will continue to evolve and enhance the developers’ experience by:
- Expanding the API catalog beyond the initial ten APIs
- Adding deeper examples and best-practice implementation guides
This is only the beginning. The portal will evolve alongside our platform, and your feedback will help shape what comes next.
A deep dive into how ERPx APIs manage secure access, tokens, and safe integration practices.
Authentication is the foundation of every ERP integration. Learn how ERPx manages secure access using token-based authorisation, and explore best practices for handling credentials, protecting data, and ensuring your APIs remain safe.
Key highlights:
- Token-based authorisation
- Secure credential storage
- HTTPS and least privilege principles
- Common security pitfalls
With robust authentication and security frameworks in place, you can confidently build applications that are both powerful and secure.
Learn how ERPx delivers real-time events, how Message Hub works, and how to build event-driven integrations.
Build real-time, event-driven integrations with ERPx’s events: Understand how Message Hub events are published, how event subscriptions work, and how to design reliable integration flows that respond instantly to changes in ERPx.
Key highlights:
- Document vs Message events
- Event versioning (v1.0, v1.1, v2.0)
- Real-time delivery through Message Hub
- Webhook security and retry behavior
Message Hub enables more event-driven and responsive integrations, the key step towards a real-time automation.