Application Vault performs the functions of a local repository and an
apps management tool. The repository functionality allows you to add,
update, and remove app packages. Using the management capabilities, you
can view what apps were installed in Plesk, configure apps, or make them
unavailable for installation. In addition, you can delete temporary
installation files by clearing the Vault cache. Next in this section,
you will find detailed instructions on performing these operations.
Application Vault is available in the Server Administration Panel:
Server Management > Tools & Settings > Application Vault.