Imported data is mined from sources outside the PPM database, such as your legacy systems. Generally, other applications are used to obtain the data, which is then converted into a format that can be used by the PPM system. Once the information is in a table in the PPM database, you can import the extracted data into the category during the Midnight Process, at a custom time scheduled in the Schedule Portfolio Management Tasks utility, via the Admin utility, or by manually running the psTriggerImport utility.
Note: For more information on the Midnight Process, refer to Administration.