In the event where there's been changes to your schedule and you need to revert an approved leave, you may refer to the following steps to request for a cancellation.
1. Go to your profile by clicking on View your profile
2. Next, navigate to the Leave tab
3. Scroll down to the Leave History section.
4. Locate the approve leave you'd like to cancel and click on the leave name.
5. In the pop-up screen, choose Pending for Cancellation Approval then click SAVE.
Note: A notification will be sent to you once your approving manager has approved the cancellation.