For successful operation of and updates to of self-hosted WHMCS installations, your system must meet the minimum system requirements for your WHMCS version.
We strongly recommend backing up self-hosted WHMCS installations' databases regularly. If a catastrophic system failure occurs, restoring a recent database backup can ensure the safety and security of your data.
You can monitor and manage your WHMCS installation's database, including optimizing database tables and manually downloading database backups, from within the WHMCS Admin Area.
Models offer a code-driven method for interacting with the database on self-hosted WHMCS installations. Many WHMCS database tables are available as modeled classes.