If you should deliver files to your partner’s FTP you need the Hostname / IP of the server, Username, Password, directory (folder location).
A partner can have different locations to deliver to. These locations are set up under Partner - Locations.
In Link User Guide there is a description of Se how to set this up : Locations .
The different locations are then available when creating a new distribution under the menu Distributions:
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under FTP Transport Type or SFTP Transport Type depending on FTP or SFTP.