Which of the following is not a configuration step for user input tasks?

Assigning a deadline for completion is not considered a configuration step specifically for user input tasks. User input tasks primarily focus on capturing and processing user interactions through forms, which involves setting up how data is displayed, how it is mapped, and which interfaces are used for the task.

Setting a dynamic display name is essential for user input tasks as it helps in providing context to users about the task they need to complete, enhancing the user experience. Similarly, mapping variables between the form and process is crucial; it ensures that the data entered by users is correctly stored and handled within the process flow. Additionally, adding the interface as the node's form is a core step that connects the user interface to the task, allowing users to interact with the process directly.

In contrast, assigning deadlines pertains more to process management rather than the configuration of user input tasks. While deadlines can be important for overall process efficiency, they do not directly influence how users input data or interact with the specific task at hand. Thus, the correct answer reflects the nature of user input tasks and their typical configuration steps.