When you start a Manual Unmerge job, the Data Manager displays a dialog with a progress indicator. A manual unmerge can take some time to complete, especially when a record in question is the product of many constituent records If problems occur during processing, an error message is displayed on completion. This error also shows up in the job execution log for the Manual Unmerge in the Batch Viewer.

In the Data Manager, the process dialog includes a button labeled

Mark process as incomplete

that updates the status of the Manual Unmerge job but does not abort the Manual Unmerge job. If you click this button, the unmerge process continues in the background. At this point, there will be an entry in the Batch Viewer for this process. When the process completes, the success or failure is reported.