This optional element lets you create an expression which produces an
that can be used to quickly locate a task within the a task client application. The expression evaluates using the input data for the task. For example, a loan application request contains several data parts, including an application ID customer name, and other loan details. The Search By expression may extract the application ID from the input data. In a task client, a user can type in an application ID in the Search By field to quickly retrieve a particular task.