I've setup an approval process to trigger on a ticket when certain conditions are met which currently works.
The approval is then sent over to a specific person via an email with the following as part of the content
The first link leads the users to the 'Notifications' view. In that view, the users can see the approval request and the button to approve or send back for revision. Clicking on the 'More' link just leads the users to the ticket itself.
The second link just navigates the user to the ticket itself.
Currently it seems that the only way the end user can approve the ticket is via the notifications view which they will have to navigate away from to look at the ticket they are trying to approve. And in the ticket, there are no buttons to actually approve the request apart from keying in notes. There is a disconnect here in terms of usability.