The Notes and Track Changes features in InDesign use the workflow user names to identify the author of a note or a tracked change. Notes and tracked changes are color-coded for each user as defined in Notes preferences in InDesign or the User dialog box in InCopy (File > User).
When you add editorial notes to managed content in InDesign, these notes become available to others in the workflow.
When tracked changes are turned on in InCopy, and an InDesign user makes text or graphics changes in managed content, those changes are tracked and recorded in InDesign, but are visible only in InCopy.