I appreciate your effort in posting the details of your concern here in the Community, @nyba225. I've come to help you import employee time entries into QuickBooks Desktop.

To have the option for the Payroll Item Mapping Tool in TSheets, the QuickBooks account you're connecting should have an active payroll service. Otherwise, you can manually assign payroll items for each employee.

When exporting hours from QuickBooks Time to QuickBooks you'll use the Payroll Item Mapping Tool to assign payroll items to it. For each type of hour your employee tracks, there'll be a payroll item assigned. Here's how:

1. Access your QuickBooks Time and select the QuickBooks dropdown.
2. Next, choose Preferences and click Payroll Item Mapping Tool.
3. Then, on the Map Employees tab, select an employee's name.
4. In each hour type column, select one payroll item for each. Selections are saved automatically.
5. Once finished, close the window.

To properly map your payroll items, please refer to this article: Map QuickBooks payroll items. 

Additionally, the links below will guide you on how to integrate QuickBooks Time and QuickBooks Desktop and frequently ask questions about the programs.

• Fix a QuickBooks Time export error due to a new QuickBooks Desktop company file
• About QuickBooks integration preferences in QuickBooks Time

Please reply to this post if you have a QuickBooks Desktop Time-related query. I'll be willing to lend a hand. Have a good day ahead!