Cleanup Migration History

All log data in the History screen is persistent until it is specifically removed by administrations. To prevent information in the History screen from getting unwieldy, administrators can cleanup migration history by removing history records as shown in the following procedure.

To cleanup migration history

In Siebel Migration, click History in the navigation menu in the side panel to go to the History screen.
Click Query (the magnifying glass icon) to filter the records in the History view – for more information, see Query Migration History. This step is optional.
Select the check box beside the Name of each history record that you want to remove from the History screen.
- To select all visible records on the current page, click the check box beside the Name column heading.
- Use the following navigation buttons to move to the next page or previous page: First Record Set, Previous Set, Next Record Set, Last Record Set.
Click Delete and then click OK when prompted with the following (or similar) message:
```
You have selected the below records. Do you want to delete them? 
'<Name_of_Plan> - YYYY-MM-DD Hr:Min:Sec'
 ...
```
Clicking OK does the following:
- Removes the selected record from the History screen.
- Deletes all database records related to the migration plan execution in the selected record.
- Deletes all associated log files and other artifacts (for example, data files in the File system belonging to the respective Source and Target connections) related to the migration plan execution in the selected record.
  
  Note: The deletion of files in the file system is an attempt. There are a number of reasons why deletion may fail. Consider, for example, a situation where you run synchronous migration from a Migration Application hosted in the Source environment and then later want to clean it up, but only the Source is available; to clean up the records, you attempt to send the delete request to the Target environment, but it fails because the Siebel Server is not up and running.