I know a little bit about how this system works. This example shows how to retrieve Bloomberg® Data License data with a request file using a Bloomberg Data License connection. Learn more about bloomberg, data, license, bdl, connection, java, exception, error, sftp, ftp, credentials Datafeed Toolbox. Why do I get an error while trying to connect to. Designed to help the Data License clients transfer files to and from the ftp servers.Bloomberg Data License. Bloomberg Per Security Manual - Download as PDF.