I have used the SharePoint Workflow Integration Client event.
The workflow is kicked off by new content being added to a library.
Users who are admins are able to add new content, start workflow and participate fine.
Users who are not admins are able to add new content, start workflow, but it will not let them participate.
The user is in a group which has Start, View and View Participate rights to the process in K2.
The task is assigned to them, they can open the K2SPTask page for it, enter in details, select the action, but when they click Submit, they get a SharePoint error page up.
Anyone understand why?