1.By opening the request details, clicking on Approved button, and submitting the request.
2.By replying to the email notification with the word Approved. You can add a comment too in the 2nd line of your email.
You don’t need to login to CFLOW nor remember the password! Make sure you enter a valid status value. For example, if the status values are Completed, Pending and Postponed, ensure that you use one of these values.