From Administration, select Purge Migration Status Report.
In Purge, specify a value:
1—Deletes all migration data
0—Deletes all migration data performed prior to today
n—Deletes all migration data before a specified number of days from today; for example, entering 2 deletes all migration data before two days from today. (The value for n must be a positive number no greater than 999.)
To delete the specified migration data, click Purge.
To close the Purge dialog box without deleting data, click Cancel.