We have updated the description of the Delete the source files after transfer option in the Transfer file activity and included a reminder to manually monitor the size of the archived content in the SFTP directory in case the option is not selected. Read here for more details: Transfer File
The Transfer file activity allows you to receive or send files, test whether there are files present, or list files in Adobe Campaign.
Please feel free to reach out through the below comment section in case you have any questions.
Sukrity Wadhwa