The Restart Merge/Household action is available on the Automated Merge Record page when the merge process has been interrupted.
To restart an Auto Merge:
Click the People tab and select Auto Merge on the submenu.
On the Show Last 10 AM Jobs or Show All AM Jobs page, click the ID link for the current interrupted Auto Merge.
Select the Restart Merge/Household action
Click the OK button in response to the confirmation message.
The Status column on the List of Auto Merges page will be updated with the current status.
When sets are being processed (records in them are being merged and householded), each one is flagged as updated only when the entire set has been processed. If you interrupt the merge process, the set that is being processed is not flagged, and records in it are not merged or householded. When you restart the Auto Merge, it begins by processing the first uncompleted (unflagged) set and continues the process.