Well, Web Host Manger (WHM) is a web hosting software to provide user-friendly interface to reduce the complexity while performing simple tasks such as uploading files, browsing from directories, editing the website, downloading files, and other complex tasks could be done easily with WHM interface.
Taking automated backups or scheduling automated backups is one of those.
In this article, we've discussed every single useful aspect of the Backup section. You can follow the below link to see the full tutorial.
https://blog.redserverhost.com/using-backup-feature-in-whm/