Scheduled tasks ( AKA cronjobs if using Linux), are a useful function of Plesk hosting, that allows for automated tasks.
This article shows how to set one.
1. First you'll need to log into your Plesk hosting account, to the main domain overview page.
2. Look for the "Scheduled tasks" icon and click it:
3. Up the top left of the tasks screen, there will be the option to add a new task
Now you can configure the task you would like to run. In this example, I've scheduled cd
"/var/www/vhosts/domainname.com/httpdocs; php -q wp-cron.php >/dev/null 2>&1"
To run every half hour:
That's all there is to it. If you want confirmation that it's running, you can modify the notification details.