You may have noticed that some Nintex Workflow actions have a Run Now button.
What does this button do?
You can use this button to test an action to see if you get the desired results within the action. The Run Now is not a simulation, so any executions that are made to query, create, update or delete will act as if they have been executed in a running workflow. This means you can directly test any changes made to a configuration without having to create and publish an entire workflow each time.