Performs a partial update on the specified case. You can update any combination of the following in a single request:

Stage — Move the case to a different stage, with an optional workflow trigger.
Case fields — Update one or more case field values.
Assignee — Change the user assigned to the case.
Case name — Rename the case.
HIL approvals — Approve or reject Human-in-the-Loop (HIL) review items.

At least one of stage_id, case_fields, assigned_to, approval, or case_name must be provided in the request body. Each update is applied independently — if one operation fails, the remaining operations still proceed.

Additionally, you can set trigger_workflow to true to execute the workflow associated with the case type after all updates have been applied. This is useful when you want to re-process the case through the workflow with the newly updated values. By default, the workflow is not triggered (false).

On success, the response includes the updated case metadata and, where applicable, the updated case field values. If any individual update fails, the response includes error details for the failed operations.