When you work with records, you might want to enter notes. You can add a note to a record in the Notes view.
To add a note to a record
Find and drill down on a field in the record to which you want to add a note.
Navigate to the Notes view, and then navigate to the Private Notes subview or the Public Notes subview.
Click the plus (+) icon.
A new record appears.
From the drop-down list for the Type field, choose Note.
In the Description field, enter the text for the note.