Which of the following is an example of a custom report task in Workday?

The choice of running a copy custom report task is accurate because it specifically refers to an action that is typically performed within the context of custom reporting in Workday. Custom report tasks allow users to create tailored reports that meet specific business needs, which may involve copying existing reports to modify them or create new versions that incorporate different data sets or parameters. This capability is essential for organizations looking to maintain flexibility in report generation and to ensure they can adapt their reporting to changing requirements.

In contrast, exporting a list of users, running a sales summary, and assessing tax liabilities represent standard report functionalities or predefined processes within Workday rather than custom reporting tasks. While these activities involve generating reports or data, they do not inherently reflect the customization aspect that is characteristic of the designated custom report task, limiting their classification in the same category.