To make the employee's Time Off / Claims / Training / Inventory request appear in Manager's Approval tab, you need to set the employee's Manager.

1. Go to Employee List menu

2. Search Employee in Active tab
You can use employee name, employee ID, and employee IC number as the keyword to search.

3. Click Edit button

4. Click the Job Information tab

5. Set manager in Manager field
The option in Manager field is based on the data in Employee List menu.
If the person you want to set as employee's Manager don't have employee data yet in the system, you need to create the employee data first by following the guide here.
6. Click Save Changes