# Workday – Update business object action

The Update business object action updates a Workday custom object associated with a business process. This action supports custom objects like Worker additional data, Service dates, and other effective-dated data tied to workers or other entities.

The action dynamically adjusts input and output fields based on the selected Business object.

# Input

Input field Description
Business object Select the Workday custom object to update, such as Worker additional data, Service dates, or Work eligibility.
Business process parameters Configure optional workflow settings. If omitted or set to false, Workday runs the business process with standard approvals, reviews, and validations as if submitted through the UI.
Edit object record data Provide effective-dated data to update for the selected object. Include all instances if the object supports multiples. Workday deletes any omitted instances.
Fields with attributes Select additional fields with custom attributes to update. The list varies depending on the selected business object.
Fields with multiple values Select fields that accept multiple values (arrays or lists). These are also specific to the selected business object.

Additional input fields may appear based on the Business object selected.

# Output

Output fields depend on the selected Business object. For example, updating the Worker additional data object returns the following output:

Output field Description
Event reference (IID) Internal ID of the Workday event.
Event reference (WID) Workday ID of the event.
Event reference Object representing the associated business process event.
Worker reference (WID) Workday ID of the worker.
Worker reference (Contingent_Worker_ID) Contingent worker ID, if applicable.
Worker reference (Employee_ID) Employee ID of the worker.
Worker reference Object representing the worker.
Effective date Date the update takes effect.
Additional data List of custom fields updated in this request.


Last updated: 1/13/2026, 2:50:00 PM

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