This model explains how to set a deadline in WorkZone as a custom field.
The user first pick a deadline by entering in a form. Then the deadline is computed as the deadline date plus 1 day (P1D).
Finally, the deadline is set in WorkZone using the SetValue Effect.
SetValue uses the computation of the activity to find the value to set in WorkZone. The field "Deadline" will be updated with the value of the computation.