Update set transfers When an update set is completed, you can transfer it between instances to move customizations from development, through testing, and into production. 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. Transferring with IP access control If IP address access control is enabled on the source instance or the source instance resides in a different datacenter than the target instance, complete these tasks before transferring an update set: Contact customer support to find out the IP addresses of all application nodes supporting your instance. On the source instance, navigate to System SecurityIP Address Access Control.Add the IP address from step one as an exception. Transferring with basic authentication If the source instance has basic authentication turned on for SOAP requests, you must use valid credentials to retrieve update sets. Transferring with an XML file You can unload an update set as an XML file and then transfer it to another instance. See Save an update set as a local XML file for details. Retrieve an update setRetrieve completed update sets from another instance.Preview a remote update setPreviewing compares an update set retrieved from a remote instance to updates on the local instance to detect potential problems. You must preview an update set and address all problems before you can commit the update set.Commit an update setWhen you have previewed an update set and have resolved any issues, commit the update set. Committing an update set applies all changes to the instance and creates a local copy of the update set that contains an update record for every change.Back out an update setYou can back out changes to existing records for any committed update set.Cautions about deleting update setsDeleting an update set is a bad practice. To revert a customization, back out the update set rather than deleting it.