When you load a metadata file, Oracle Hyperion Financial Management replaces metadata with new metadata from the load file. Replacement is useful for making minor changes to the metadata, such as adding an account. For example, if your application includes a North America entity, and you load entities from a metadata file, the attributes for the North America entity in the file replace the attributes for the North America entity in the application.the system waits for other tasks such as consolidation, data entry or other load processes to finish before proceeding to load the files. Oracle recommends that you load metadata during periods of light activity across the server cluster instead of, for example, during a long running consolidation. You can check the Running Tasks page to see which consolidations or data loads, for example, are in progress. Loading large metadata files can result in a proxy timeout error. If this error occurs, increase the Web proxy timeout setting. After you load a metadata file to an application, users using the application are notified that the system has changed and that they must log off from the application and log back on.
This video demonstrates How to load metadata files in Oracle HFM (Hyperion Financial Management):