Which to use
- Comments: ask questions or suggest without changing text;
- Track changes: edit directly with marks for the other party to confirm.
Steps
- Review → New Comment, or select text and insert a comment;
- Review → Track Changes so every edit is marked;
- Accept or reject each change, then turn tracking off.
Delivery
Keep the marked-up file when you need a record. Before sending outside, accept all changes and save a new copy so no marks leak.