Please go to Configuration → Approval process → Click 'Basic approval flow'
2. Select employees that will belong to this 'Basic approval flow'
3. Define the approval process
I - Here you can define the type of approval: Automatic or with specific steps
II - This feature is responsible for setting up the approval steps. You can set up either one person or many employees as a multi-approval.
III - This option enables approving requests while the original approver is currently absent.
IV - Here you can choose who will ne notified via email about the finally approved request. You can put particular employee or the whole team to be notified.
V - You can define an alternative process that can contain completely different approval settings (I - IV). The alternative process is applicable only to a particular absence type.