Once you have deleted a backup template, the data carrier defined in the backup template is no longer available for backing up and restoring data. The backup on this data carrier, however, is not deleted. If necessary, you can define a new backup template for this data carrier later on and use the backup saved in it for restoring data.
You are logged on to the database as the database system administrator or as a DBM operator with server authorization for performing backups.
More information: Glossary, Server Permission
In the context menu of the database, choose Administration.
Open the Backup tab page.
Expand Templates.
Choose Delete.
Database Administration, Backup Templates and Data Carriers