Before you can export any hours from TSheets to Reckon, you must use the Payroll Item Mapping Tool to assign payroll items to your hours; otherwise Reckon won't accept them.
See also: How to Map Reckon Payroll Items.
Payroll Item Mapping by Employee
If you would like a default payroll item assigned for each type of hours your employees track, use the Payroll Item Mapping by Employee option. For all regular hours tracked per employee, there will be one payroll item assigned to those hours in Reckon. For all overtime hours tracked per employee, there will be one payroll item assigned to those hours in Reckon. This can be done for regular time, overtime, double-time, and any PTO codes that you have set up.
Payroll Item Mapping by Customer / Service Item / Class
If you prefer to assign payroll items based on specific customers, service items, or classes, we recommend that you first set an employee default (just in case there are any customers, service items, or class items that don't get mapped). Then set the override setting by your preferred criteria.
Allow Employees to Select Their Own Payroll Items
If you would prefer not to do any mapping and have your employees select their payroll items when they clock in and out, you can set this up on your account.
Note: Any Payroll Items selected by the employee on their timesheets will override any overtime calculation account settings. For example, even though an employee might have two hours of overtime for the week displayed in the reports and export details, it is up to the employee to select the appropriate payroll item for overtime on that timesheet in order to get payed the overtime rate.