In SQL Express, the same automated backup options are not available that the full version of SQL provides. In licensed versions of SQL backups can be created using scheduled maintenance tasks. Since SQL Express lacks the SQL Agent it is not possible to schedule maintenance tasks on Express versions.
Microsoft offers a workaround in their article How to schedule and automate backups of SQL Server databases in SQL Server Express.
Please note that setting up Automated Database backups and any issues that may arise setting up automated database backups is not support by IC support.