You can make applications or scripts to run automatically at any time you want by creating scheduled tasks. It is similar to cron jobs. Follow the below steps to create a scheduled task in Plesk.
Login to Plesk panel as Admin.
Go to Websites & Domains tab.
Click on Show Advanced Operations.
Now go to Scheduled Tasks.
Select the user and click on Schedule new task.
A form will appear, specify the required details in that form. If you want email notification every time a task is done, specify your email address in the form otherwise select Do Not Send.
Click OK to complete, now you will be able to see your new scheduled task in the bottom of the list of scheduled tasks.