When the Approval History is Enabled any Approval event regarding an issue is displayed on the Approval History tab of the Jira Activity section for the issue.
By default the displayed fields include the following:
Source Status
Transition Name
Destination Status
Approval Name
Approval Detail (any group, project role, user, etc. having been configured on the Approval)
Executor
Action (Approved, Rejected, Pending,Automatic Transitioning, Automatic Notification, Approvals Notification, Single Notification)
Date
Approver's Comment
By Default data are ordered by date & time in descending order.