In fulfillment workflow I have an activity node where application Other Technical Owners are assigned. In case there is no OTO set the workflow will stop with error (which is cool, I don't want to automatically complete the activity node even if nobody is assigned). How can I edit the processing workflow with admin user in order to push forward the workflow manually?
Not sure if you can push it forward.
One way to resolve it, is to avoid such scenarios.
Use a SQL select node to identify if there is OTO configured and if the user is active. If no, then assign it to someone else.