Activity History

When a record is displayed to the user, the activity history related to that record appears below it.

Each entry in the activity history tells who did what, and when. The history shows:

• Email messages that were sent from the record form.
• Messages received through the Email Channel (generally as a reply to a message that was sent).
• The new old values of any Audited Fields

For Cases, all fields are audited, by default. So for example, any change to the status or priority of a case record is automatically recorded in the case history. For other objects, field auditing must be explicitly enabled.

Learn more: Field Audit Log Settings