Navigate to Tools > Duplicate Management to see the total number of accounts merged or managed by the Account Match & Queue and/or Duplicate Scans. Click on the number of Duplicates Merged to see a list of all previously merged accounts.
From the duplicate merge history list, click on the date of the Duplicate Merge to view the details of the merged accounts.
This takes you to the Duplicate Merge Detail page, where you can see the accounts you merged and the updated account data.
You can also view the duplicate merge history from a Neon account page. If an account has been merged, you will see a link at the top of that account page indicating the number of times it has been merged.
Click on that link to see the duplicate merge history details.