Step 1: Payroll > Payroll Settings
Step 2: Go to Pay Frequencies & Click "Add"
Step 3: Apply to your Employees
For each employee attached to this pay calendar, go to their profile in Xero > Payroll > Employees
Go to the Employment Tab in their profile
Choose the Pay Calendar your just created:
Once that is done, restart the export process in Urhere, and ensure you choose your ned payroll calendar.