Navigate to Categories, click Add Category, select the site(s), and name it Audit.
If you have an existing audit checklist, navigate to Templates and click Add Template. Add items manually or upload from CSV.
Go to Task Management and click Add Task. Select your audit template using 'Select from Templates'. On the Assign page, attach the Audit category.
Choose Repeat for regular audits or One Off for a single audit. You can also create quick one-off audits on the mobile app by tapping the + button and selecting Create Task.