There are several ways to approve/reject a request:
Use buttons in the email notification:
Click on the “Approve” or “Reject” button in the notification email.
Reply to the notification email starting with the word “Approved”/"Approve" or “Rejected”/ "Reject".
Take decision via mobile app:
Tap on the "Approve" or "Reject" button in the mobile app.
Use ApprovalMax web app:
Click on the "Approve" or "Reject" button in the web app.
Use Slack integration to approve/reject your requests.