System Update Sets An Update Set is a group of customizations that can be moved from one instance to another. Update sets allow administrators to group a series of changes into a named set and then move them as a unit to other systems. In most cases, Update Sets allow customizations to be developed in a development instance, moved to a test instance, and then applied to a production instance. Note: Properties that are tagged as Private are excluded from Update Sets. Keeping system properties private prevents settings in one instance from overwriting values in another instance. For example, you may not want a system property in a production instance to use a particular value from a development instance. Add a property using sys_properties.list. Before using Update Sets, review the Getting Started with Update Sets page. Update sets tablesEach update set is stored in the Update Set [sys_update_set] table, and the customizations that are associated with the update set, which are entries in the Customer Update [sys_update_xml] table, appear as a related list on the update set record.How the system determines the default Update SetOnly one Update Set can be the default set for any scope. To set an Update Set to be the default set, you set the Default set field to true. Update Sets for changes to applicationsThe system creates a separate Update Set for each application that only contains changes associated with the application. This ensures that each application's access settings are properly evaluated and applied when committing Update Set changes. Customizations in an Update SetAn Update Set is an XML file that contains a list of changes to an instance. Administrators can save an Update Set as a local file that can be transferred to another instance.