You can add criteria to a subset or reset task if you want to include specific rows of data in the task instead of the entire data.
Subset criteria is required in a subset task. Reset criteria is optional in a reset task.
In a subset task, the workflow creates a subset that includes rows that meet the subset criteria. The subset also includes all rows related to the rows that meet the subset criteria.
In a reset task that includes reset criteria, the workflow considers the criteria in addition to other configuration properties in the task. The result of a reset task differs based on how you configure the task. You can add reset criteria to further drill down and reset the required data to a target.