Ensure below things been configured correctly
- Go to Employee menu > Employee Master
- Edit Employee record
- In Official Details tab, check whether Is Reporting Manager option is selected.
- Go to Employee menu > Employee configure > Employee Role Mapping
- Assign Manager role to specific reporting manager.
- Go to Configure menu > Screen Permissions
- Select Role type Manager
- Select Main Menu - My Reports
- Check whether Reportee Leave History option is selected.