Customize Workday without adding complexity.
Build custom apps, workflows, and experiences directly on Workday while keeping data, security, reporting, and business processes connected.
Extend Workday without complexity.
Workday Platform and Product Extensions help organizations meet unique business needs without adding separate systems, spreadsheets, and fragile integrations. Teams can build custom apps, workflows, and experiences directly on the Workday platform using data, business processes, reporting, security, UI, APIs, and orchestration.
This is an extension approach, not a core-customization approach. Teams create net-new capabilities around Workday; they do not modify Workday-delivered screens or core product code.
What Workday Extend is — and is not.
Workday Extend is a platform for building custom apps native to Workday. Apps can create new experiences, automate processes, capture app-specific data, surface reporting, and connect Workday with external systems.
Workday Extend does not change Workday-delivered pages or alter core code. It extends the platform through new apps that use Workday data, business processes, reporting, security, and UX patterns.
Choose a development approach.
Workday supports a continuum of developer capabilities, from low- and no-code tools to professional developer experiences. This lets organizations match the approach to the business problem, team skills, and required level of complexity.
Workday Unveils AI Developer Toolset provides a validated public overview of Workday Build and the developer tools for custom applications, AI experiences, and agents.
Connect external systems and data.
Most enterprises do not operate on one platform. Workday Integrations help teams connect APIs, data, and workflows across Workday and external systems. Teams can orchestrate actions across systems while keeping approvals and other business-process controls connected to Workday.
For higher-volume external data, Workday Prism Analytics can bring non-Workday data into Workday for transformation, reporting, and analytics. The precise public product-page URL should be confirmed with Web before it is used as an inline link.
Governance and update-safe design.
Custom apps can use Workday’s security model instead of requiring a separate security layer. Domains secure app data, business processes govern workflow, and reporting can include app data in the broader Workday context.
Because Extend apps are built around Workday-delivered functionality rather than modifying it, they are designed to be update-safe. Teams should still apply their own release-validation practices when an app depends on integrations, external services, or organization-specific configuration.
Frequently asked questions.
What is Workday platform extensibility?
It is the ability to build custom apps, workflows, and experiences that extend Workday capabilities while using platform components such as data, business processes, reporting, security, UI, APIs, and orchestration.
How can enterprises customize Workday without creating upgrade complexity?
Build extensions around Workday rather than modifying delivered functionality. Workday Extend apps are designed to be update-safe and maintain a connected platform approach.
Can Workday custom apps integrate with other systems?
Yes. Workday Integrations support APIs, integrations, and orchestration that connect custom apps and workflows across Workday and third-party systems.
How can developers get started?
Visit the Workday Developer Portal for documentation, tutorials, APIs, and technical resources.