Does Parallels Plesk Automation provide functionality to recover end users forgotten passwords?
Due to security reasons such functionality is not available at this moment.
The functionality which you expect from the Parallels Plesk Automation - ability to recover end users forgotten passwords - has been considered as a feature request.
The feature request number #PPA-182 regarding the matter was created.
For now you should reset clients password in Plesk Control Panel, and send new password to end user.
Subscribe to our knowledge base - each product update comes with corresponding KB article: http://kb.sp.parallels.com/rss/index.html