View Grid history 

• View update history (by who, and when) by clicking on the "History icon" on the right-side panel.
• Click to view changes by update date. You can view Grid history up to 30 days.
• Click Refresh to update your Grid history. 

Show changes and hide changes

• Click on Show changes in Grid history.
• Click on the changes to open Record History and view what changes have been made. 
• Click Hide changes if you do not want to see the details.