How to: View or Delete Report History (Report Manager)
Report history is kept with the report upon which it is based. Any user who has permission to view a report can view its history.
To view a history snapshot
Start Report Manager.
In Report Manager, navigate to the Contents page. Navigate to the report that you want to create or view history snapshots for, and click the report to open it.
Click the History tab. The history snapshots are displayed in the When Run column.
To view the history snapshot, click the snapshot.
To delete a history snapshot
In Report Manager, navigate to the Contents page. Navigate to the report that you want to create history snapshots for, and click the report to open it.
Click the History tab. The history snapshots are displayed in the When Run column.
Select the check box next to the history snapshot you want to delete, and then click Delete.