Data Transfers · Data Transfers basics
Should I use Data Transfers or Data Parking?
Short answer: Data Parking frees space by moving a folder to your external drive and leaving a shortcut. Data Transfers copies, moves, syncs and downloads between any places, on demand or on a schedule, without shortcuts.
Use Data Parking to free space on your Mac while keeping things where you expect them: it moves a folder to your external drive and leaves a shortcut at the original place, so apps and Finder still find it.
Use Data Transfers for everything else that moves data between places: making copies, mirroring a folder, syncing with a cloud account, moving between two clouds, downloading a link, or anything you want on a schedule. It doesn't leave shortcuts.
The two work together: when Data Parking sends files to a cloud account, those uploads run as transfers, and any that need attention appear in Data Transfers.
Related: Moving folders · What is Data Transfers?