If you want to make changes to an approved request, find it in the Dashboard, in the MY DOCUMENTS component on the list in the ABSENCES section and open it with one click. Approved requests are marked with a checkmark symbol.To make changes, click MODIFY REQUEST in the top left panel. In the REQUEST DETAILS section, click MODIFY. In the REQUEST MODIFICATION table, correct the leave dates to the appropriate ones.Note! The modified dates cannot extend beyond the initially approved range, meaning it is not possible to lengthen the leave!

You can find more information on this topic in the article: Modifying and withdrawing a leave request.