Unit4 Developer Portal
Latest Updates
Launch Edition Dec 2025
Developer Portal is Live
The new centralized hub for ERPx API documentation, and integration guide. Explore core sections like Getting Started, Authentication & Security, and 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 Reference.
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
Unit 4 Developers is the single place to find all your U4ERP Intergrations 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 available across ERPx domains.
- Portal launch with the 10 highest-impact APIs.
- Structured documentation for fast onboarding.
- Expanding coverage every release.
Documentation approach
We’re 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.
Our roadmap
We will continue to evolve and enhance the developer experience by:
- Expanding the API catalog beyond the initial eight 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 authorization, and explore best practices for handling credentials, protecting data, and ensuring your APIs remain safe.
Key highlights:
- Token-based authorization.
- Secure credential storage.
- HTTPS and least-privilege principles.
- Avoiding common security pitfalls.
With robust authentication and security frameworks in place, you can confidently build applications that are both powerful and protected.
Learn how ERPx delivers real-time events, how Message Hub works, and how to build event-driven integrations.
Build real-time, event-driven integrations using 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 ERP changes.
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 you to make your integrations event-driven and responsive, a key step toward real-time automation.
How we ensure reliable API evolution with minimal disruption.
As our platform grows, updates are necessary - but we’re committed to keeping them predictable and stable. This article explains our versioning and deprecation policy so you can plan with confidence.
Key highlights:
- Versioned endpoints (/v1/…, /v2/…).
- What triggers a new version.
- Discovery endpoints for current status.
- Deprecation → grace period → sunset (410 Gone).
We’re committed to long-term reliability. Our versioning and deprecation policies are designed to ensure that your integrations remain stable, supported, and future-proof.
