We are throwing a custom exception in the action which is triggered on the approval of a workflow from backoffice. However, irrespective of the exception we throw, a generic error message appears in the backoffice as "Please try again or contact your...

In backoffice, when we click on "Inbox", we see the complete list of workflows regardless of their status. We want to filter out the workflows with status "IN PROGRESS" and only show them on page load. How can this be achieved in Hybris 6 ? Thanks!