You might need to upgrade Oracle ERP history, or archive, data when you upgrade an Oracle ERP application from version 11i to R12. Upgrade the history data so that you can view it in the upgraded version of the application.
For example, your organization archives data from Oracle E-Business Suite. The organization upgrades the version of Oracle E-Business Suite from version 11.5.10 to version R12. The data in the history database is compatible with version 11.5.10. You must be able to view the data in version R12.
Contact Informatica Global Customer Service three months before you plan to upgrade to a newer version of Oracle E-Business Suite. Informatica Global Customer Service will send you the history upgrade scripts required for the version you are upgrading to.