Submit Feedback
Legacy Knowledge Base
Published Jun. 30, 2025

Headless Endpoint WorkflowInstance Change Transition Not Working

Written By

Morheno Legros

How To articles are not official guidelines or officially supported documentation. They are community-contributed content and may not always reflect the latest updates to Liferay DXP. We welcome your feedback to improve How To articles!

While we make every effort to ensure this Knowledge Base is accurate, it may not always reflect the most recent updates or official guidelines.We appreciate your understanding and encourage you to reach out with any feedback or concerns.

Legacy Article

You are viewing an article from our legacy "FastTrack" publication program, made available for informational purposes. Articles in this program were published without a requirement for independent editing or verification and are provided"as is" without guarantee.

Before using any information from this article, independently verify its suitability for your situation and project.

Issue

  • When trying to use endpoint '/o/headless-admin-workflow/v1.0/workflow-instances/{workflowInstanceId}/change-transition' to approve and reject workflow tasks using the headless endpoint we are getting 400 errors while making a call.

Environment

  • DXP 7.4

Resolution

  • As an alternative on /o/headless-admin-workflow/v1.0/openapi.json there is an API named "/v1.0/workflow-tasks/
    {workflowTaskId}
    /change-transition" The body will look similar to this and should resolve the behavior:
     
    {
      "comment": "Approve Comment",
      "transitionName": "approve",
      "workflowTaskId": {ID}
    }
Did this article resolve your issue ?
Legacy Knowledge Base
Did this article resolve your issue ?