Duplicate Management Setup Items Consolidated

In Lightning Experience, the Setup items Duplicate Error Logs, Duplicate Rules, and Matching Rules are now grouped under Administer | Data Management | Duplicate Management. In Salesforce Classic, these items, along with Duplicate Record Sets and Duplicate Record Items, are grouped under Administration | Data | Duplicate Management. Previously, in Lightning, these items were found under Feature Settings | Data.com; in Salesforce Classic, they were found under Data.com Administration | Duplicate Management. These changes apply to both Lightning Experience and Salesforce Classic.
Available in: Professional, Enterprise, Performance, Unlimited, and Developer Editions