Ans. To set up the sales rep in QuickBooks Desktop for Mac, you can navigate to the Lists menu, choose the Customer & Vendor Profile, and find the Sales Reps option. From here, you can click on the Plus button and start adding the Sales Rep names to track the income of the sales representatives. QuickBooks Online users may not have a dedicated feature for adding Sales Reps, however, they can use the Location Tracking feature (as an alternative way) from the Company categories.