Adobe Incopy 2020 V15.1.2 Here

Files must be stored in a shared location (server, Dropbox, Creative Cloud Files) for the check-in/check-out workflow to function.

To edit, you must "Check Out" a story. This locks it so designers cannot change text while you are editing. Once done, you "Check In" to save changes and unlock it. View Modes: Adobe InCopy 2020 v15.1.2

Use Window > Editorial > Track Changes to track edits for accountability Adobe Help. Files must be stored in a shared location