The system performs audits automatically from the schedule you configure.

Users with the certification_admin or admin role can generate on-demand audits directly from the Audit form by clicking Run Audit. When an audit runs, ServiceNow populates the Audit Results related list in the form and shows follow-on tasks, if any, in the Follow On Tasks related list. Click Preview Audit Results to generate an audit preview that tests your template conditions without generating any audit results.