You can now mark Open Text questions as required directly in the workflow editor.
How to configure it:
Open your workflow in the editor and select the Open Text question you want to update.
In the question panel on the right, find the Required checkbox below the Media settings.
Check the box to make the question mandatory. Users won't be able to submit the workflow until they provide a response.
Click Save
Click the rocket icon to "Publish" from the Drafts page.

