To create a new leave request from the employee portal (Dashboard), expand the MY DOCUMENTS component (Create Document) and select the LEAVE REQUEST option. Choose the type of leave you are interested in from the list.
Once you select a specific type of leave (absence), the full leave request form will open, containing all necessary details.
In the REQUEST DETAILS section, select the start and end dates of your leave.
Click the SEND FOR APPROVAL button located in the upper-left corner of the screen.

More you can find in: How to request a leave

To submit a leave request, click the “+” button in the Leave app view or on the Dashboard, then select Create Leave Request. Choose the type of leave: for day-based leave, click the calendar icon and enter the date range; for hourly leave, select the date and specify the start and end time. If submitting on behalf of someone else, go to the Information tab, select the requester from the list, and optionally add informed persons. In the Approval tab, select approvers from the list (note: in some companies, the approval path may be predefined and non-editable), then send the request for approval.

More you can find in: Requesting for leave